Resitance Of Ammeter

An ammeter gives full deflection when a current of 2 amp . Flows through it. The resistance of ammeter is 12 ohms . If the same ammeter is to be used for measuring a maximum current of 5 amp , then the ammeter must be connected with a resistance of

The resistance of ammeter is R_(0)

Assertion : Higher the range, greater is the resistance of ammeter. Reason : To increase the range of ammeter, additional shunt needs to be used across it.

The function of shunt resistance in ammeter is

What is the resistance of an ammeter ?

A voltmeter and an ammeter are joined, in series to an ideal cell, giving reading V and A respectively. If a resistance equal to the resistance of the ammeter is now joined in parallel to the ammeter then :