Teaching HTET PGT Level 3 - 2024 Mock Test Physics Current, Resistance and Electricity Potentiometer
A one-meter long wire AB of a uniform cross-section is connected to an ideal battery of potential v volt and zero internal resistance as shown in the figure. If the potential at point C, 20 cm from the end A is 1.2 V; the value of voltage V and the potential gradient on the wire AB are respectively:
1
15 V; 15 V/m
2
1.5 V; -15 V/m
3
1.5 V; 1.5 V/m
4
15 V; -1.5 V/m