A moving coil galvanometer has 100 turns and each turn has an area `2.0 cm^2`. The magnetic field produced by the magnet is `0.01 T`. The deflection in the coil is `0.05` radian when a current of `10 mA` is passed through it. Find the torsional constant of the suspension wire.

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 coil of a moving coil galvanometer has an effective area of 4xx10^(-2)m^(2) . It is suspended in a magnetic field of 5xx10^(-2) Wb m^(-2) . If deflection in the galvanometer coil is 0.2 rad when a current of 5 mA is passed through it, then

A moving coil galvanometer has N numbr of turns in a coil of effective area A , it carries a current I . The magnetic field B is radial. The torque acting on the coil is

A moving coil galvanometer has a 50-turn coil of size 2cm xx 2cm . It is suspended between the magnetic poles producing a magnetic field of 0.5 T . Find the torque on the coil due to the magnetic field when a current of 20mA passes through it.

A rectangular coil of 100 turns each of area 10 cm^2 hangs freely in radial magnetic field. The coil deflects through an angle of 30^@ when current of 0.5 m A is paased through it . If torsional constant of suspension fibre is 2.5 xx10^-9 Nm/rad, then magnetic field will be ,

A coil has an inductance of 0.05 H and 100 turns and 0.02 A current is passed through it. Flux linked with coil is

The coil of a moving coil galvanometer has 100 turns each of area 15 cm^(2) . It is suspended in a radial magnetic field of induction 3 xx 10^(-2)Wb//m^(2) . What is the current senstivity of the moving coil galvanometer, if the torsional constant of the suspension fiber is 1.5 xx 10^(-8)Nm /radian ?

The coil of a galvanometer has 500 turn and each turn has an average area of 3 xx 10^(-4) m^(2) . Calculate the magnetic moment of the coil when a current of 0.5 A passes through it. If a torque of 1.5 Nm is required for this coil carrying same current to set it parallel to a magnetic field. calculate the strength of the magnetic field.