A potentiometer wire is connectd across the ideal battery now, the radius of potentiometer wire is doubled without changing its length. The values of potential gradient

If the radius of a potentiometer wire is increased four times, keeping its length constant, then the value of its potential gradient will become

The potential gradient of the potentiometer wire depends on

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)

If the length of the potentiometer wire is doubled, the sensitivity for obtaining null point will –

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)

A cell with considerable internal resistance is connected directly across the terminals of the potentiometer wire. The potential gradient is now 'G'. Now the potentiometer wire is replaced by another wire of same material but double the length and having the same radius as that of the original wire. The new potential gradient on the wire with the same cell connected as before is (A) G/2 (B) G (C) G/2