Prof. Hemant Dongre, Internal Resistance of Cell using Potentiometer

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HEMANT DONGRE

4 жыл бұрын

Application of Potentiometer

Пікірлер: 31

@amitkulshrestha2004 Жыл бұрын

Very clear and precise explanation 👍

@rekhasapaliga6763 4 жыл бұрын

Thank u soooo much sir...💯helped me so much during practical exam👨‍🏫

@memesculture Жыл бұрын

Practical kese gaye aapke? Kaise karate hai exam?

@Legit_India Жыл бұрын

Sir, when key 2 is open, we will not input any resistance in the resistance box therefore L1 is constant,but as soon as we close k2, we have to input differenr resustances and find values of L2,so L1 needs not to be changed. Am i right sir? I have Skill test so just comfirimg pls reply asap.

@vignesh.s7100 Жыл бұрын

Yes L1 is constant , U have to tabulate only R and L2

@amitkulshrestha2004 Жыл бұрын

@@vignesh.s7100 Yes

@sunomaryam484 Жыл бұрын

Love from Pakistan

@s.3421 2 жыл бұрын

👍🏻

@sooperkidsglory 2 жыл бұрын

What about L1?

@54_bhavikasakpal69 4 жыл бұрын

Thank you sir🙏

@sushmita586 3 жыл бұрын

Very Nice explanation.

@sanghavijoshi7418 4 жыл бұрын

Thank you sir

@saiparkhe23 Жыл бұрын

at what value should we keep the rheostat ?

@hemantdongre3718 Жыл бұрын

Ideally we should adjust it to get larger value of L1. That can give you more accuracy.

@shreelekhamishra6048 3 жыл бұрын

How you prepare the cell of which we need to calculate internal resistance ,I want to know how you prepare + ve end and negative end , how you join the wires inside the battery ( cell )

@hemantdongre3718 3 жыл бұрын

To avoid the making of new primary cell each time and its complications, we use dry cell that is available in the market. We solder the wires at its terminals.

@rustynail3519 Жыл бұрын

Will the L1 value remain the same throughout the experiment?

@laukikdongre5791 Жыл бұрын

Yes. L1 is the first reading when the cell is not shunted by any resistance. It remains constant.

@hemantdongre3718 Жыл бұрын

Yes. As long as you do not change the position of rheostat and supply voltage.

@user-zr6iw8uo1r 5 ай бұрын

Sir reading kashi ghyaychi

@nath3846 Ай бұрын

Confusing

@LuckyRajput-pm3ls 3 жыл бұрын

I am a manufacturer of resistance box or reostate and loading reostate plug key

@pooranjangid730 3 жыл бұрын

What is use of Rh in this ckt

@hemantdongre3718 3 жыл бұрын

You can change the potential gradient along the wire using rheostat. By this you can increase the balancing length for emf to be greater and thus the accuracy of the readings will be more.

@pooranjangid730 3 жыл бұрын

@@hemantdongre3718 thnx sir

@wisamkayani9634 Жыл бұрын

Sir can you tell how formula is derived

@physicsncbshwetha5728 3 жыл бұрын

Sir we want take battery of 5 v only on what basis we select range of battery please reply sir IAM working as junior lecturer

@hemantdongre3718 3 жыл бұрын

We take a 5V source as a battery source as the potentials we have to balance are of the order of 1.5 to 2 V. For balancing the cell, we need to have more PD between points A and B than the one to be balanced.