In potentiometer the potential gradient is –

On increasing the resistance of the primary circuit of potentiometer, its potential gradient will

On increasing the resistance of the primary circuit of potentiometer, its potential gradient will

On increasing the resistance of primary circuit of potentiometer, its potential gradient

A potentiometer having the potential gradient of 2 mV//cm is used to measure the difference of potential across a resistance of 10 ohm . If a length of 50 cm of the potentiometer wire is required to get null point, the current passing through the 10 ohm resistor is (in mA )

A potentiometer having the potential gradient of 2 mV//cm is used to measure the difference of potential across a resistance of 10 ohm . If a length of 50 cm of the potentiometer wire is required to get null point, the current passing through the 10 ohm resistor is (in mA )

A potentiometer having the potential gradient of 2 mV//cm is used to measure the difference of potential across a resistance of 10 ohm . If a length of 50 cm of the potentiometer wire is required to get null point, the current passing through the 10 ohm resistor is (in mA )

A potentiometer having the potential gradient of 2 mV//cm is used to measure the difference of potential across a resistance of 10 ohm . If a length of 50 cm of the potentiometer wire is required to get null point, the current passing through the 10 ohm resistor is (in mA )

A cell of negligible internal resistance is connected to a potentiometer wire and potential gradient is found. Keeping the length as constant, if the radius of potentiometer wire is increased four times, the potential gradient will become (no series resistance in primary)

A cell of negligible internal resistance is connected to a potentiometer wire and potential gradient is found. Keeping the length as constant, if the radius of potentiometer wire is increased four times, the potential gradient will become (no series resistance in primary)

What is potential gradient ?