Why a moving coil galvanometer cannot be used with an alternating current.

In case of a moving coil galvanometer, what is the relation between the current I and the angle of deflection theta ?

A moving coil galvano meter can be used as a current measuring device in a circuit by using a :

Draw a labelled diagram of a moving coil galvanometer. Describe briefly its principle and working.

Hard water cannot be used in boilers -why?

If the current sensitivity of a moving coil galvanometer is increased by 20% , its resistance also increased by 1.5 times. How will the voltage sensitivity of the galvanometer by affected?

The resistance of a moving coil galvanometer is 99Omega and the current for its full scale deflection is 100muA . To convert the galvanometer into an ammeter to read a maximum current of 10 mA, what should be the resistance to be connected in parallel with it?

The resistance of a moving coil galvanometer is 500Omega and the current required for its maximum deflection is 10muA . To convert the galvanometer into a voltmeter to read a maximum voltage of 100 mV, what should be the resistance to be connected in series with it?

Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage senstivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is

The number of turns of the coil of a moving coil galvanometer is n, the area enclosed by the coil is A and the magnetic field is B. Find how much torque will act on the coil if a current of strength I flows through that coil.

A galvanometer of resistance 10 Omega gives full scale deflection for current of 10 mA. How can this galvanometer be used as an ammeter of merasure current of range 0-2A