When current of `300 mu A` is passed through the coil of galvanometer, the coil is deflected through `30^(@)` .The twist constant of the suspension fibre is `5times10^(-9)Nm` per degree. Calculate the deflecting toque acting on coil

When a current is passed in moving coil galvanometer, the coil gets deflected because,

When 2 amperes current is passed through a tangent galvanometer, it gives a deflection of 30^(@) . For 60^(@) deflection, the current must be

The current that must flow through the coil of a galvanometre so as to produce a deflection of one division on its scale is called

When a current of 1A passes through a tangent galvanometer, angle of defection is deg 60. When current is reduced to 0.5A, then the new angle of deflection will be

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.

When a current of 5mA is passed through a galvanometer having a coil of resistance 15Omega , it shows full sacle deflection. The value of the resistance to be put in series with the galvanometer to convert it into a voltmeter of range 0-10V is:

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 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

The shunt required for 10% of main current to be sent through the moving coil galvanometer of resistance 99 Omega will be-

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 __________.