In A.C generator increasing the no. of turns in the coil

The Electromotive force (EMF) developed by the generator depends upon

At city substation, the AC is stepped down to

A step done transformer has a turns ratio of 100:An ac voltage of amplitude 170 V is applied to the primary. If the current is 1 mA in the primary, the current in the secondary should be

Generators produce electric current due to the movement of wires near

An electrical switch that opens and closes under the control of another electrical circuit is called

The direction of the force on a current-carrying wire in a magnetic field can be found by using

When a current passes through a conductor, it produces a magnetic field around it. This is discovered by

The electric power delivered to the secondary circuit is equal to the power supplied to the primary circuit in a/an

Change in no. of magnetic field lines induces

A step-up transform has a turns ratio of 1:An alternating supply of 15 V is connected across the primary coil. The secondary voltage should be

The current-carrying loop inside the magnetic field rotate due to the

Electric charges can be separated into

Which one is true about magnetic poles?

The force on a wire inside a magnetic field increase when

When the surface is held perpendicular to the magnetic lines of force, the number of lines of force is

The information of users which are read by the ATM machines are stored on

A transformer is needed to convert 200 V into a 10 V supply. If there are 1000 turns on the primary coil, then the number of turns on the secondary coil is

The strength of magnetic field is defined as

When a coil rotated in magnetic field the induced current in it

The simple coil placed in a magnet can not rotate more than

The two forces which are equal in magnitude but opposite in direction form a

It is made of many loops mounted on a shaft or axle

In a practical electric motor, the coil is called

Electric motor is a device which converts electric energy into

To control a large current with the help of a small current, we use the

If we apply the law of conversion of energy to electromagnetic induction, the electrical energy induced in a conductor comes from the

When the plane of the coil is perpendicular to the lines of magnetic force, the number of lines of magnetic force passing through the coil will be

If we grasp a wire with right hand such that the thumb pointed in the direction of current, then the curling fingers of hand will point the

If the secondary voltage is larger than the primary voltage, the transformer is called a