Home
Class 12
PHYSICS
On increasing the resistance of the prim...

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

A

becomes more

B

becomes less

C

not change

D

becomes infinite

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

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

In potentiometer the potential gradient is –

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)

An ideal battery of emf 2 V and a series resistance R are connected in the primary circuit of a potentiometer of length 1 m and resistance 5Omega The value of R, to give a potential difference of 5 m V across 10 cm of potentiometer wire is

A potentiometer wire of length L and resistance 10 Omega is connected in series with a battery of emf 2.5 V and a resistance in its primary circuit. The null point corresponding to a cell of a emf 1 V is obtained at a distance L//2 . If the resistance in the primary circuit is doubled then the position of new null point will be.

A current of 0.01 A flows through a potentiometer wire of cross section area 10^(-6)m^(2) . If the specific resistance of the potentiometer wire is 10^(-7) ohm-m, then the potential gradient will be

Potential gradient of a potentiometer is equal to

A 2 volt battery, a 15 Omega resistor and a potentiometer of 100 cm length, all are connected in series. If the resistance resistance of potentiometer wire is 5 Omega , then the potential gradient of the potentiometer wire is

A 2 V battery, a 990Omega resistor and a potentiometer of 2 m length, all are connected in series of the resistance of potentiometer wire is 10Omega , then the potential gradient of the potentiometer wire is

AN ideal battery of 4 V and resistance R are connected in series in the primary circuit of a potentiometer of length 1 m and the value of 5 ohm, to give a difference of 5mV across 10 cm of potentiometer wire , is :