In the shown potentiometer setup length of AB is 10 m and

Last updated: 6/21/2023

In the shown potentiometer setup length of AB is 10 m and has a resistance 20 2 If the switch in the secondary circuit is open the galvanometer gives zero deflection at 240 cm from point A If the switch is closed and R x 2 the zero deflection is at 180 cm from point A If the switch is closed and R 2 the zero deflection is at y cm from point A Then the value of y is 15V 400 www TQ www www R Options 1 90 2 120 3 60 4 80 S