AB is a potentiometer wire (Fig 3.4). If the value of R is increased, – InterviewSolution

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1.	AB is a potentiometer wire (Fig 3.4). If the value of R is increased, in which direction will the balance point J shift?
Answer» If R is increased, the current through the wire will decrease and hence the potential gradient will also decrease, which will result in increase in balance length. So J will shift towards B.

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