The coil of a moving coil galvanometer has an effective area of `5xx10^(-2)m^(2)`. It is suspended in a magnetic field of `2xx10^(-2)` `Wbm^(-2)`.If the torsional constant of the senpension fibre is `4xx10^(-9)`Nmdeg^(-1)`. Then find its current sensitivity in degree per microampere

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 magnet of moment 4Am^(2) is kept suspended in a magnetic field of induction 5xx10^(-5)T . The workdone in rotating it through 180^(@) 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 square coil of 10^(-2) m^(2) area is placed perpenducular to a uniform magnetic field of 10^(3) Wb//m^(2) . What is magnetic flux through the coil?

A square coil of 10^(-2) m^(2) area is placed perpenducular to a uniform magnetic field of 10^(3) Wb//m^(2) . What is magnetic flux through the coil?

The coil of a galvanometer is 0.02xx0.8 m^2 . It consists of 200 turns of the wire and is in a magnetic field of 0.20 T. The restoring torque constant of suspension fibre is 10^(-5) Nm//degree. Assuming magnetic field to be radial (a) What is the maximum current that can be measured by this galvanometer if scale can accommodate 45^@ deflection? (b) What is the smallest current that can be detected if minimum observed deflection is 0.1^@ ?

The magnetic moment of a magnet is 0.25 A-m^(2) . It is suspended in a magnetic field of intesity 2 xx 10^(-5) T . The couple acting on it when deflected by 30^(@) from the magnetic fields is .

The area of the coil in a moving coil galvanometer is 16 cm^(2) and has 20 turns. The magnetic induction is 0.2T and the couple per unit twist of the suspended wire is 10^(-6) Nm per degree. If the deflection is 45° calculate the current passing through it.

A galvanometer of number of turns 175 having 1cm^(2) area through 1^(@) when a current of 1mA is passed. Find magnetic field if torsional constant of spring is 10^(-6)N-m

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 __________.