A moving coil galvanometer has a rectangular wire coil of enclosed area 0.001 `m^(2)` and 500 turns. The coil operates in a radial mafnetic field of 0.2T and carries a current of `6pixx10^(-8)` A.
If the torsional spring constant is `6xx10^(-7)N-` m/rad, then angular deflection of the coil in radians is

The rectangular coil of a moving coil galvanometer has area of 8 xx 10^(-4) m^(2) and 100 turns. The coil is kept in a radial horizontal magnetic field of 0.2 T. Calculate the restoring torque constant of hair spring connected to coil when current of 4 xx 10^(-5) A passes through it and deflects the scale by 20^(@) .

A moving coil galvanometer has a rectangular coil of area 10^(-3) m^(2) and 150 turns. The torsional constant of the hair springe connected to the coil is 5 xx 10^(-7) Nm per degree. The maximum angular deflection is 30^(@) . Calculate the maximum current that can be measured by it if its rectangular coil is kept in a radial horizontal magnetic field of 2,000 G .

A rectangular coil of effective area 0.01 m^2 suspended freely in a radial magnetic field. The coil deflects through 30^@ when current of 0.5 xx 10^-3 A is passed through it. If torsional constant of suspension is 25 xx 10^-9 Nm//rad . Find 'B' magnetic induction.

A rectangular coil of 50 turns, each of area 0.1 m^(2) and carrying a current of 1 A is held perpendicular to a magnetic field of 0.1 T. What is the torque acting on the coil?

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 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 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 ,