A galvanometer has a sensitivity of 60 divisions `A^-1`. When a shunt is used, its sensitivity becomes 10 divisions `A^-1`. What is the value of shunt used, if the resistance of galvanometer is 20 ohm.

A moving coil galvanometer has 150 equal divisions. Its current sensitivity is 2 divisions per millivolt. In ordre that each division reads 1 volt, the resistance in ohms needed to be connected in series with the coil will be

A galvanometer having a coil resistance of 100 omega gives a full scale deflection , when a current of 1 mA is passed through it. The value of the resistance, which can convert this galvanometer into ammeter giving a full scale deflection for a current of 10A.

A galvanometer having 30 divisions has a current sensitivity of 20 muA per division. It has a resistance of 25 Omega . How will you convert it into an ammeter measureing upto IA? How will you convert this ammeter into a voltmeter reading upto 1V?

The deflection in a moving coil galavanometer falls from 50 to 10 divisions, when a shunt of 12 ohm is connected across it. The resistance of the coil of the galvanometer is

In a galvanometer there is a deflection of 10 divisions per mA.The internal resistance of the galvanometer is 60 Omega . If a shunt of 2.5 Omega is connected to the galvanometer, calculate the maximum current in which the galvanometer can be dead.