A coil having n turns and resistance `R Omega` is connected with a galvanometer of resistance `4R Omega`. This combination is moved in time t seconds from a magnetic field `W_(1)` weber to `W_(2)` weber. The induced current in the circuit is

A coil having 'n' turns and resistance R Omgea is connected with a galvanometer of resistance 4R Omega . This combination is moved in time 't' seconds from a magnetic flux phi_(1) . Weber to phi_(2) Weber. The induced current in the circuit is

A resistance of 2 Omega is connected in parallel to a galvanometer of resistance 48 Omega . The fraction of the total current passing through the resistance of 2 Omega is

A resistance of 4 Omega is connected in parallel to a galvanometer of resistance 396 Omega . Find the fraction of the total current passing through the galvanometer and the fraction of the total current passing through the shunt.

One coil of resistance 40 Omega is connected to a galvanometer of 16 Omega resistance . The coil has radius 6mm and turns 100. This coil is placed between the poles of a magnet such that magnetic field is perpendicular to coil. If coil is dragged out then the charge through the galvanometer is 32 muC . The magnetic field is :-

A resistor of resistance R is connected to a cell internal resistance 5 Omega . The value of R is varied from 1 Omega to 5 Omega . The power consumed by R

When a resistance of 100 Omega is connected in series with a galvanometer of resistance R, then its range is V. To double its range, a resistance of 1000 Omega is connected in series. Find the value of R.

An AC generator of 220 V having internal resistance r=10 Omega and external resistance R=100 Omega . What is the power developed in the external circuit?