A tangent galvanometer of 50 turns 8 cm mean radius, is connected in series with a silver voltameter and a battery. If the galvanometer shows a steady deflection of `45^(@)` and 0.185 g of silver is deposited in 30 minute, find the horizontal component of the earth's magnetic field (E.C.E. of silver = 0.001118 g/coulomb).

A tangent galvanometer has 66 turns and the diameter of its coil is 22cm. It gives a deflection of 45^@ for 0.10 A current. What is the value of the horizontal component of the earth's magnetic field?

When a current of 318 m A is passed through a tangent galvanometer , a deflection of 45^@ is obtained. If radius of coil is 10 cm and number of turns 50 , then what is a value of horizontal component of earth's magnetic field ?

A copper voltameter is connected in series with a tangent galvanometer of 10 turns and 5cm in radius. Calculate the weight of copper is deposited in 30 minutes if the deflection of the galvanometer is 60^(@) . (Horizontal component of earth's field =28A m^(-1)and "E.C.E of copper" =32.8 xx 10^(-8)kgC^(-1) .

A tangent galvanometer shown a deflection of 45^@ when 10 mA of current is passed through it. If the horizontal component of the earth's magnetic field is B_H = 3.6 xx 10^(-5) T and radius of the coil is 10cm , find the number of turns in the coil.

A steady current is passed for 25minutes through a silver voltameter and ammeter in series and 0.059g of silver of deposited. The ammeter reads 0.3A. Find the errror, if any, in the ammeter reading, given that the E.C.E. of silver =11.18xx10^(-7) kg C^(-1) .

A coil of radius 10 cm and resistance 40 Omega has 1000 turns. It is placed with its plane vertical and its axis parallel to the magnetic meridian. The coil is connected to a galvanometer and is rotated about the vertical diameter through an angle of 180^@ . Find the charge which flows through the galvanometer if the horizontal component of the earth's magnetic field is B_H = 3.0X 10^(-5) T .

A tangent galvanometer has a coil of 50 turns and a radius of 20cm. The horizontal component of the earth's magnetic field is B_H = 3 xx 10^(-5) T . Find the current which gives a diflection of 45^) .

A tangent galvanometer has a coil of 25 turns and radius of 15 cm. The horizontal component of the earth's magnetic field is 3xx10^(-5)T . The current required to producea defection of 45^(@) in it, is

A tangent galvanometer ha s60 turns of wire of mean diameter 20 cm . Find the reduction factor of the tangent galvanometer at a place where the horizontal component of earth's magnetic field 0.32 xx 10^(-4) T .

When a galvanometer having 30 divisions scale and 100Omega resistance is connected in series with the battery of e.m.f. 3 volt through a resistance of 200Omega , it shows full scale deflection. Find the figure of merit of the galvanometer in microampere.