Question

How to make the potentiometer more sensitive (i) the value of resistance R is increased when the jockey (sliding contact) is near the balance point (ii) the value of resistance R is made zero when the jockey (sliding contact) is near the balance point (iii) the emf E1) is increased (iv) the internal resistance r is increased​

Answer 1

Answer:

d

Explanation:

To increase the sensitivity of potentiometer, we must decrease the potential gradient and to do so, we can either decrease the current ( increasing the internal resistance of battery) or we can increase the resistance R by keeping the length same.