Question

What is the difference between AC and DC? What is the advantage of AC over DC? What needs to be done to convert an AC genarator and DC genarator

Answer 1

Answer :-

→Difference between AC and DC.

AC stands for alternating current :- The current which changes its direction at every half rotation or period is known as A.C .

The frequency of A.C in India is 50 Hz.

DC stands for direct current :- The current which doesn't changes its direction is known as direct current or DC.

→What is the advantage of AC over DC .

• AC can be transmitted over long distance without much loss of energy.

• The shock of AC is repulsive in nature .

• AC can be generated easily .

• The cost of production of AC is low in comparison of DC.

→What need to be done to convert an AC generator to DC generator .

To convert AC generator in to DC generator we need to change Split rings in place of rings or commutator.

Commutator :- It is a device which change the direction of current flowing in circuit at every half rotation.