To find resistance of Given wire by using meter Bridge Also find resistivity @a2zpractical991

So, look, this is what I do—see, I'll take this length starting exactly from zero, and when I measure this length, it will be ours. You can check out all the practicals, whether for Physics, Chemistry, or Biology, and thank you so much for giving this channel such tremendous support, and thank you very much. Well, today's practical that I'm showing here is... We see that you're being shown so many practicals here, and if we can't check out one of the ones we have, then please specify your concern regarding your booking so we can assist you. What is your booking concern? That's when you'll understand the practicals very well, and the theory will be extremely important for your viva, so you won't skip this video. Are you going to skip it? You're reading these things, kid. Just look at it very carefully. Don't be afraid when it comes to the topic of vivas. There's no need to be afraid here. Just give me some time. Let's go through this carefully. Pay close attention to what theoretical data is there, and what you need to remember here—only then will you be able to perform the practicals very well. There is a diagram for this. This battery connects to us: one from the positive and the other from our negative. This connects, now watch carefully—what exactly happens with this kind of Western Bridge Network? This is a circuit diagram. Now, as we pass through here We keep doing this current thing, so we're getting tired, when we're young, this child is also a child, here it's not possible, why do we keep struggling with this key? Why did we come from the house to the temple? We will carry the child to the Himalayas immediately. Gilo deflection, which we also call the nozzle point, when the parent passes through the gallon meter, the gallon meter showing deflection is only Gilo. Let me make it clear to you that the Mara Meter Bridge experiment operates based on the principle of the Western Bridge Network, which looks something like this. And if we take the resistance ratio here, then P or Is the answer correct, child, or are you looking at something else on you, or perhaps you're checking some other data, which is extremely useful for practical purposes? Show me the pond rate, which is the Western Bridge Network, Thikya—this is absolutely not this kind of approach at all. It has to be done; everyone understands now. I'm explaining what I'm talking about. Here there is an unknown resistance, and this is the resistance box. What we have been calling resistance is known to be 123. I'll tell you everything, just take a quick look at this little bit of theoretical data I keep thinking, what is the formula for resistance? Tell me, what is the formula for resistance? Resistance is equal to rho times L divided by A Now listen to the donation, when, when you will pass the current exam When your galvanometer shows zero deflection, that is the null point. null point means zero deflection null point is equal to zero deflection When these zeros show zero deflection, when your circuit is ready It will be fine, it'll become balanced, okay When your bridge remains, what will become of you, in balance What will the bridge become? In-balance is fine. Now the bridge is unbalanced, what does it mean? So, listen carefully I'll show you right here. Here it will be. I take C in Jocky's point. And these are C, B So, listen carefully First, let me calculate and show you the resistance of AB. Resistance of AB Tell me what will happen And the other one, if I see the other one Beitmed Adan Panaala large of PC Robot, PC, What will be the job? What's up today? PC OP Shadli what has become. That is its length Full is it less than a hundred, Roh? He is a male. The chief is Sroḍh Agawān. This is the road over there So we'll check here, this west and bridge balance condition Balance condition Alright, what will that Tom become? Have you read the formula P by Q? Alright, that was the formula: P divided by Q is equal to R divided by S. We have already removed the rear axle. How much has this guy taken out? Rohit, I'm fine. You know, Rō Specific resistance length and this area Alright, let's go So, the girl named R. was saying, "I'm sorry." L Bai A is correct And the other one, tell me. The other one, tell me S Look here, modelos for this B.C.'s valley, B.C.'s valley, I'm saying, I'm crying 100-L divided by a right one is okay Rō 100- Divided by What will this become from this, this, this? After that, choose Here's your balloonometer, okay? You can see it in the balonometer. Here it is zero, that is null deflection Yes, I am suffering from the heat. After that, this is your battery eliminator. Alright In the battery eliminator, the positive terminal will indicate this I'll explain how to connect it, and this is your resistance box—how to connect this as well I'll guide you on how to connect it; now you'll be looking at the diagram You should carefully look at it with the diagram. Let's go. Look, your battery eliminator is fine, the battery. The positive terminals of the eliminator are the ones you have meter bridge is from exactly the left-hand side of the meter bridge What will happen? It will connect, okay, so positive get Connected to the left side. Okay, from the left side, you have one What will happen in the log when connected so battery The eliminator should have a positive connection; you should have this from it. Stay connected; stay connected, the other one is negative, the one that is negative It will dig from your key. It will go by saying, by the key, this is it, so A battery is a type of cell. What will happen to this negative from the eliminator? It will go. After that, the second end of your key It will connect to the side of your point Q. What will be on the right-hand side will be connected. So, battery, sorry, the one which is your negative, the second terminal What will be on your right-hand side, what will be at any one point, will be connected So the connection has been established. After that, whatever your P is P, your known resistance is I will connect this side to the known resistance. And Q is your unknown resistance. So, for the unknown resistance, I am a wire. What do I have to do with this wire, kid? We need to find out the unknown resistance; it's a test. So, what should I do on Q's side? Should I connect it? So first, I mean left-hand side, that is here On P's side, this What do I do with the known resistance connect Here, two terminals are visible to me. I will connect it from one side. And on the other side, I'll connect this later. This is a known resistance box. It's a vaccine, from this one, me First, please carefully look at the connection You might miss a little bit in this exam. There will be no connection. Then there will be no null deflection, no point will remain. If you don't read, everything will go to ruin. Now it's connected, after that the unknown resistance of yours Why should this be done at this time? What should the child resist? will find out to find out why it needs to be done Whatever needs to be found out to find out what needs to be found out to connect Ravi to connect provinces to connect provisions Therefore, you have calibrated the thermometer. Apa galonometer is together with the others. In the middle, please stop eating and go to the jury. Plug played the song Do you have a galvanometer to measure the current? Golfures from which high place? Golfures is very fond of tea and also prefers Chittihang. Insul galanometer during the same year Your battery's A terminal is universal. Therapy will make you think deeply about many things, some of which may be black. Baturir said, "I have become yours." . What do you want to do with this, are you going to do it? What is the second package of Pahkabad to be launched? Show me how the second one is connected, whether it's connected to the one here or to the other one. Now I'll show you, I've already made a circuit. Now I see here that both sides show deflection, right? Look, when you touch this side Look here, the side deflection is showing up When you touch this side Touch this side. So the galvanometer is in the exact opposite direction. It will show, it will display So you'll understand it now That your circuit is absolutely correct Come on, you're really liking this video So please like this video Now we take rapid readings. So, how will you take the readings? Look here. I'll show you on the smart board too. What should I write here? resistance of the resistance box The more resistance I draw from here I'll write it here: 1, 2, 3, 4, how long is the length What do you mean by length? Where exactly are we getting our null point? First I work, only reading I take out When I pulled out a resistance So, what should I write first here? That I have pulled out a resistance When I pulled out a resistance, then Where is the null point appearing in my galvanometer? I'll have to check on him. Now I'll put it here. You have to go to Jockie and tap him. It's clearly showing this way here. So, this strip on the galvanometer If it comes to zero Then your null point will be displayed. I'll slowly tap Jocky. So when I'm not here, you know, I'm not really doing anything. So, it's showing zero right here. The reading shown here She looks so beautiful. 23.5 It's showing 4 20 point 5 My jacket is 23.5 What I am seeing here as deflection is not the nozzle deflection, but the deflection of the living being. So I will write the first reading here: 23.5 Alright 23.5 Alright, let's go What should I do now? 2-ohm woofer Damn it, I've had enough of this nonsense. Removed the second one Now I will check the nozzle deflection of this. How much are you coming? Matabi, the tap's handle is broken. Where are you coming from? When will this guy here get a tab? Here it is. Here it says tab Well, Bhiloor is crossed, one more task done. Here, tap, look here, this is here When I tapped here, you were mine We can see the job, that is our 34 When I tapped at 34 So how much does it show here, 0 Showed, okay, then 2 How much is coming for 34 34 length is coming, okay After that, after that, what will I do? I'll take 3 ohms, okay, so 2 is one more If I remove it, these three ohms will become zero. Now let's see where the water inlet point is coming, okay I'll check for Four Oms from Fatca, how much it is How much is my value? Look, this is the deflection on this side, this is the deflection on this side. And these are right here Here it is. Forty 46.5, OK No, okay 46, 46 on As the nozzle deflection I will show you, right there where The length will remain, what needs to be done with it here? I need to load it, okay, so look, this is what I do Look here, I'll take this length starting exactly from zero. 97 How much will the child's share be? 97 How much will the wage increase be? 97 cm Later I will have to convert this into meters. All must be written in SI units. Now after that, I need to find out the diameter of this wire. What am I supposed to do with this given wire? Need to find out the diameter How do you know how to use a screw gauge? Please look very carefully. Look, this is your screw gauge This is your circular scale, the one几百 on this side And the lower one, which is yours, is a linear scale. Now carefully look What is the problem here? when you turn this circular scale So what will happen when it goes to 0? will touch here and right here Cutting it will bring the sound. What do you need to check here now? the one inside, the entire linear scale you had 0, the inner 0 is there The zero of our circular scale He has already gone ahead. Look behind you, he's touching the 0. This zero inside here Look here, it's touching right behind this, it's touching right behind the 0. How many digits are being touched below? So that is from 0 to 90 by 10 And here, the 0 is touching somewhere that is 4 and then 14 Meaning, the 14-digit 0 is touching below. So the circular scale of So this error we have, this is ours negative error, if the same 0 If he had gone down below and the one inside 0 He touches somewhere up there So, your positive error is that much number. How is it coming out, look, just like I'm doing this to it I'm closing it completely, and a sound like this comes out. So this one inside the 0, the linear scale one Zero on the circular scale Exactly here, what are you doing over this side, right here? touching What are you doing over here? So this scale here, this scale We keep saying, there's an error with minus 14. How old is our child? The error is minus 14 You must have understood this by now. What is this minus plus error? So 0 will never go over you the one with a circular scale The zero will remain on the linear scale, no matter where it is touched. Error 14 What is 14? This is an error. Now, tell me how you calculate the list count, check the list count Even if I tell you, it's 0.01 mm, it's the list count, but How would you feel if you were removed, just take a look Don't turn it, look, after 0 One digit is one. If it's a digit of mm, then check it out So that is your list count. I mean one divided by a hundred, I mean you One circular, one To display a line, a linear line What needs to be done for a hundred? If you have to rotate, then divide by one hundred. So that is 0.01 What will happen to the list count? What will happen to this? What will happen? Tired? When can I check whether this 0 is the one on the linear scale, the zero below the line? Where is he placing the scale? It's zero now; what is that man doing at scale 32? It will be picked up. So the reading that will come will be 32, right? What will be left of its reading, child? It will be 32, okay, so what is the number of divisions and the circular scale reading? 30 February 30, is the zero inside the linear scale, is it not the correct zero? What are you doing at 32? I'm aligning the 32nd with Zero's. Whenever I had to bring this pitch to life, I had to fully rotate the entire four-chord progression. We had to rotate the pratha and then flatten it, and then a base appeared before us. So if you divide it, you'll get it 0.01 millimeter Right on Come on, now Diameter now given by Gibin V. How to count list count Into number, division, and its circular scope You know our LISC count, right? So you had seen that He had come at 32. Who was doing some kind of site work on 0 It will become multiplied by 32. Then you will get it. We will multiply by 32. Then you will get it. 0.32 millimeter Okay We encountered a negative error here. What was the negative error you saw? Minus 14 went up to 0 And the number was now divided below the site. While they were making a concourse for 0 It was a negative error, correct? What was the negative error here? Will take minus 14 -0.14 Right on What will happen with the minus sign now? Plus I didn't write diameter. 0.32 0.14 These are my negative errors, right here. So, what will minus minus become? Plus, this will become 46, and this will become 4. And if these 0 points are corrected, what will happen? 0.46 Well, from here, I'm getting this information. that is its diameter How much is it? 0.46, and I've already told you the length of the wire. You must have seen the practicals here I was calculating different resistances here In the resistance box, so some things here and there Here, the length that was increasing So, what are we supposed to do here with this thing that's been thrown at us? Fill in when I had When I took the resistance box from Calculated the resistance of one ohm. So the length I was getting was 23.5 When I was 23, I did it like this, doing it this way I was given the length, the next column of ours What will happen to 100-L? Tell me, what will happen to 100-L? So, look, what you need to do You'll get this, and the third one as well. If you take 45.5 out of 100, this will be obtained 46 will be obtained out of 100. Then it will be obtained, Tushra is here. It is the last column. Resistance 100-L How do you do this? What will happen here? R, what's here? One om. Okay, 100 minus L. 100 minus L, how much is it? Tell me, 76.5 divided by length Length? Tell me the length. 23.5, okay. Now you have to calculate it, and you have to find 3.2. Next, you have to do the second calculation, 2, and then do 3.88. You'll get it given, then we'll calculate here what mean will we find? Mean, now what will we calculate in this? What will you do, what will you do here, kid, what will you do here? Do whatever you have to do. Just do it right. Okay, 3.2 lacs, point eight, out, you've got it, that's after. And whatever values you have, divide them by four. As you divide this, you will If you cheat, you'll get 16. 16 divided by 4, so 4 ohms will come. How much will it cost, 4 ohm? So, what's my resistance, mean? 4 ohms, look, this is your resistance right here But what have we taken out here now? Look, one thing is your resistance resistance Alright, resistance means R, this one What will happen, row, l upon a, but what are we going to extract here Resistance, specific resistance, that is called what, resistivity resistivity, okay How do you calculate resistivity? What is the formula for it? Resistivity Apply it here, this is your resistivity. What do we call row? We call it resistivity. Okay. So what will happen, r, a by l, this will happen here r, a By L, now you speak, sir, R Here it is, came from Mean, also the length What do you know about Linth? Look, I've got this The wire was unknown to him, a big thick wire Okay, regarding the length that he had, I had written it down. 97 cm, okay Put you right here, r, and also yours I'll meet you there, I'll meet you there. I don't know, what is the formula for area? Where will I get the value of r? I've checked. How will the radius be obtained, what will you do? Let's calculate the diameter of that wire. We use the caliper to measure the diameter. Diameter: 0.46 It was a radius, right? Isn't that exactly what diameter is? Isn't it? It happens, okay, sir, I know this T. Skur will be four, let's go We'll just leave it here. Pi, T Skur Bye Four E, what should I do now I will do everything with these values, and give you the answer. It will be fine, check the vaccines, resistance Tell me how much I had, how much came Four, put the four here, vaccine What is the value of pi? 3.14 into diameter, what diameter came in millimeters Sukru Bai had made juice, 0.46 square, divided by 4 in length Who are you, who are you, who How much was it? I had calculated it. 97 cm, vaccines Alright, now you calculate it completely. And whatever answer comes, write it down So what will happen to your resistivity, what will it become? Your, resistivity, vaccine, come on We lie here, calculating. I have filleted it. When you multiply this whole thing You will get 2.65 And with this, I will multiply, so 388 Vaccines, now when you divide this 0.0068 You will get the answers in ohm cm. But, I'm going to slightly I can shift the answers; how can I shift them? I'll take it there, two points over. That is 0.68 ohm cm Sorry, 0.68 So, you see, I took the 2 points over there. So what do I have to do, 10 raised to minus 2 ohm cm Vaccine, along with this, please give it to me What needs to be done, change will have to be made So you understand now I shifted over there with two digits. So it will become 10 raised to minus 2. And the resistivity, which is this What do you mean, unit? What will it be, ohm cm Vaccines, you can also put this in meters vaccines, from centimeters to meters What will you do to convert 10 raised to minus 2? So here it is Here, you people have completed the entire practicals Just saw how these practicals are actually conducted. Vaccines, so look here, kids If you do not support me, then I will not do such things I will bring along many practicals for you. And then what will I become present? All practicals are available on this channel. Whether you're studying physics, chemistry, or anything else, Two bios are available, all practicals are available What you need, come along with me, if you need A child standing beside me, one by one, if a child stands beside me So my channel will get a boost, and I'll I'll try my best to get you some really good stuff Here to present, so that You have scored 30 out of 30 in the board examination. No one could stop Marx from coming, so thank you for Watching this video and please do subscribe Please, one of your subscribers is this Standing beside me will give my channel a boost, and you'll get some really great things. Here to present, so that Nothing can stop you from scoring 30 out of 30 marks in the board examination, then