A `TG` has 500 turns, each of radius`2picm`. If `B_(H)=3.6xx10^(-5)Wb//m^(2)`, The deflection due to `7.2mA` current is

The tangent galvanometer has 50 turns of diameter 10 cm. If B = 13.14 xx 10^(-5) " wb/m"^(2) , the reduction factor is ________ .

A solenoid of length 0.2m has 500 turns on it. If 8.71 xx 10^(-6) "Weber"//m^(2) be the magnetic field at an end of the solenoid, then the current flowing in the solenoid is –

A tangent galvanometer gives a deflection of 30^(@) whewn a current of 250 mA is passed through its coil. If the radius of the coil is 8 cm and B_(H)=2.5xx10^(-5)Wbm^(-2) . Find the length of the wire used in winding the coil.

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

The coil of a moving coil galvanometer has 1000 turns each of area 3 xx 10^(-4)m^(2) . Its suspension fibre has restoring torque of 2 xx 10^(-4)N-m per degree and the radial magnetic field of induction 0.08 Wb/m. If a current of 10 µA is passed through it, then the deflection produced is

The coil of a moving coil galvanometer has an effective area of 4x 10^(-2) m^(2) . It is suspended in a magnetic field of 5x 10^(-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 current of 0.5 A is passed through the coil of a galvanometer having 500 turns and each turns has an average area of 3xx10^(-4) m^(2) if a torque of 1.5 N-m is required for this coil carrying same current to set it parallel to a magnetic field calculate the strength of the magnetic field

A current of 5.0 A is passed through the coil of a galvanometer having 500 turns and each turns has an average area of 3xx10^(-4) m^(2) if a torque of 1.5 N-m is required for this coil carrying same current to set it parallel to a magnetic field calculate the strength of the magnetic field

A current of 0.5 A is passed through the coil of a galvanometer having 500 turns and each turns has an average area of 3xx10^(-4) m^(2) if a torque of 1.5 N-m is required for this coil carrying same current to set it parallel to a magnetic field calculate the strength of the magnetic field