When the current in a potentiometer wire decreases, the potential gradient
A. decreases
B. increases
C. remains the same provided the resistance and the length of the wire remain the same
D. remains the same, irrespective of the resistance . of the wire and its length.
Answer:A
When the current in a potentiometer wire decreases, the potential gradient
A. decreases B. increases C. remains the same provided the resistance and the length of the wire remain the same D. remains the same, irrespective of the resistance . of the wire and its length.