Question:
In the potentiometer arrangement shown the driving cell D
Last updated: 6/10/2023
![In the potentiometer arrangement shown the driving cell D](https://media.kunduz.com/media/sug-question-candidate/20210524143201003892-2008126.jpg?h=512)
In the potentiometer arrangement shown the driving cell D has emf and internal resistance r The cell C whose emf is to be measured has emf E 2 resistance 2r The potentiometer wire is 100 cm long If balanced is obtained the length AJ l a l 50 cm l 50 cm c d and internal A balance will be obtained only if resistance of AB is r s r balance cannot be obtained D r DIH dh E 2r J