How many half slip rings are connected to ends of the coil in DC generator?

Explain why, the direction of induced current in the coil of an A.C. Generator changes after every half revolution of the coil.

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The power developed in the circuit of a 2500 (mu)F capacitor that is connected in series with the coil is

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The power developed in the circuit of a 2500 (mu)F capacitor that is connected in series with the coil is

The second end of a first resistor is connected to first end of second resistor. Then how are the resistors connected ? Derive the for the resultant resistance of this connection.

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The inductance of the coil is

How is magnetic flux linked with the armature coil changed in a generator ?

A current of 6 A flows in a coil when connected to a dc source of 18 V. If the same coil is connected to an ac source of 20 V, 50 rad/s, a current of 4 A flows in the circuit. The inductance of the coil is 10x mH. Find out the value of x.

A current of 6 A flows in a coil when connected to a dc source of 18 V. If the same coil is connected to an ac source of 20 V, 50 rad/s, a current of 4 A flows in the circuit. The inductance of the coil is 10x mH. Find out the value of x.