12th physics practical E1/ E2 using potentiometer experiment 10 #a2zpracticals

Students, today we are going to perform Experiment Number 10. E1 by E2 using potentiometer There are two methods in this. There is one, your separate cell method And the second difference method is In practice, I'll tell you something very fast. If you need details, the video is available I'm telling you some method. And let me tell you this first How do you connect a circuit? Here are two cells. And here are the first two keys These are two keys. And here is your galvanometer And here is your battery The rheostat is on this side. And here is the potentiometer I'll tell you how to connect. Look at that, that's a golden one. The child will have one terminal of the galvanometer protruding. I'll take out those two terminals. And it will remain connected via two keys. Who will it connect to? Via keys? Look here, which one will connect to the two terminals of the galvanometer? with keys Which one will have two terminals It's a local cell of your lecturer. This is called an anode, and what is this called? You know, cathode refers to the negative charge, not positive. There is also a positive aspect to this. And this one is Raud. Call it negative, I'll go deeper into it. It took Daniel's temple. From the clutch About him The wall that will come out from here After that, we start the practical session. We are starting the practical session. What is in the observation? EMF of the battery Then I will supply you with a 2V power source. EMF of cell 1 Cell 1 means Leklenc's Sil How would you find its EMF? And find out exactly in this way Here, I will connect it. So this is basically my 1 Now, look, this came at 1 o'clock 1.08, how much is it coming to? 1.08, pencil I will write with a pencil 2V And this is 1.080 Okay, E2, what's yours? This is Daniel Cell. And here is its Need to measure how much is coming in. Alright, then let's take a look. 8, 9, OK 0.9, how much is coming in for us? 0.9 98V is coming Now look, I'm here with the balancing length when E1 is in the circuit If this stays closed So, will the reading come? And it will remain closed I write down every single reading for you. As in observation table No. 1 What should I do, just listen carefully I need to close E1. So what should I do now? I will close E1. E1, E1 means it's yours Leklenc's sale I'll close it. I'll keep E2 open. Come on I am turning on your circuit. Now I will move Jokey. step by step tap to tap because The resistivity of the wire increases Resistance increases, okay Then I'll tap and see. Where is zero coming from, okay? Now look here This fluctuation is coming here as zero. Where? 100 200 Isn't this it? No, leave them as they are. What will happen? OK 258 So at 258, you have Null deflection zero is showing So, whatever reading I get for my E1 How much will it be? 258 Alright 258 What will you do now for E2? So close E1 You'll open E1, right? You will close E2, won't you? Alright Hey, I never put that in. You might forget this in the exam. Okay You will keep topping the charts. Okay 243 At 243, null deflection shows zero. Then mine will be 243. Come on Now the second reading What should I do for reading number 2 now? So that I can take the value on the second resistance. Okay Come on Now you need to take out the second reading. So you will have to close E1. And E2 will have to be opened. Alright Now I'll make it top top right here Alright Okay Look at this 349 No, 351 How much is our reading? 351 What will you do for E2? Will you open E1? And what will you do with it? Will you close it? Alright This rod of the negative terminal has to be inserted here. And we'll keep topping it, topping it again and again. And let's see where I am getting null deflection It's available here somewhere So, null deflection is this. Tell me, how much is it costing? It's coming, isn't it? He's coming from somewhere, isn't he? 70 is coming, 307 no This will make a big difference. 307 What will you do for the 3rd? You need to move this a little forward and backward from the back. And close E1. Open E2 and keep tapping back here. Here it is, 364 When 364 comes, I will write 364 here Tell me what to do for E2; should I just close it? Now I keep tapping it, and the value is slightly less than E1, which is fine. Look at this, 324, that's correct, so look at this, 324 One last reading, and I'll be gone from here I'll do a light rehearsal—I'll go up and down. I'll close this, I'll open this Alright, check this out: 394, and I'll close it. I will open E1 and close E2, then my last reading will be here. I'm removing 348, not 348. Now what do you have to do? I have to divide all this and write it here, so I'll just write it as is, dividing it. What is 1.06? The second one is 351 divided by 307. 1.143 Next is 364 divided by 324 1.123 next is 394 divided by 394 divided by 348 1.1321 I need to divide everything by 4 now, so 1.061 I feel, plus 1.143 I feel, plus 1.123 I feel, plus One is I write next, and divided by four, I am big. This is the same method. Okay, the Sam method is the cell's individual method. Sorry, this is the individual method. So, 1 point could be off by a little up or down. 0.981 It's also fluctuating, yes, look how much it's coming in After dividing, 1.1 comes out, and also how much is coming to us 1.1 So, what is common between our two readings? They are exactly the same. You can experiment with this approach; the answers have already been obtained for both. It's the same, so this is a method like an experiment This is the individual method, and there is one difference method for it. We will see in the sad video that the vaccine is there.