Home
Class 12
PHYSICS
State how a moving coil galvanometer can...

State how a moving coil galvanometer can be converted into an ammeter.

Text Solution

Verified by Experts

A galvanometer can be converted into an ammeter by connecting a low resistance (called shunt) in parallel to the galvanometer. The value of shunt is so adjusted that most of the current passes through rrit. In this way, a galvanometer is converted into ammeter and can measure heavy currents.
Promotional Banner

Similar Questions

Explore conceptually related problems

A galvanometer can be converted into an ammeter by connecting

In a moving coil galvanometer is based on the

A moving coil galvanometer can be converted into a voltmeter by connecting :

A moving coil galvanometer, having a resistance G , produces full scale deflection when a current I_(g) flows through it. This galvanometer can be converted into (i) an ammeter of range 0 to I_(0)(I_(0) gt I_(g)) by connecting a shunt resistance R_(A) to it and (ii) into a voltmeter of range 0 to V(V = GI_(0)) by connecting a series resistance R_(V) to it. Then,

A galvanometer with a resistance of 75Omega produces a full scale deflection with a current of 5 mA. How can this galvanometer be converted into an ammeter which has a range of 0-5A?

A galvanometer with a resistance of 75Omega produces a full scale deflection with a current of 5 mA. How can this galvanometer be converted into an ammeter which has a range of 0-5A?

A galvanometer has a resistance of 100Omega . A current of 10^(-3)A pass through the galvanometer. How can it be converted into (a) ammeter of range 10 A and (b) voltmeter of range 10v.

A moving coil galvanometer has 50 turns and each turn has an area 210 . The magnetic field produced by the magnet inside the galvanometer is 0.02 . The torsional constant of the suspension wire is 10 . When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by 0.2 . The resistance of the coil of the galvanometer is 50 . This galvanometer is to be converted into an ammeter capable of measuring current in the range 01.0 . For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in , is __________.

The current sensitivity of a moving coil galvanometer can be increased by

(a) Briefly explain how a galvanometer is converted into an ammeter. (b) A galvanometer coil has a resistance of 15 Omega and it shows full scale deflection for a current of 4 mA. Convert it into an ammeter of range 0 to 6 A.