Question

what is difference between AC and DC

Answer 1

Amount of energy that can be carried:

AC-Safe to transfer over longer city distances and can provide more power.

DC-Voltage of DC cannot travel very far until it begins to lose energy.

*Cause of the direction of flow of electrons

AC-Rotating magnet along the wire.

DC-Steady magnetism along the wire.

*Frequency :

AC-The frequency of alternating current is 50Hz or 60Hz depending upon the country.

DC-The frequency of direct current is zero.

*Direction :

AC-It reverses its direction while flowing in a circuit.

DC-It flows in one direction in the circuit.

*Current :

AC-It is the current of magnitude varying with time

DC-It is the current of constant magnitude.

Answer 2

AC stand for alternating current .
In AC
Negative charge flow in rod and after some time positive charge flow in same rod That means the alternate each other.

DC stand for Direct current

In DC
same current flow in same terminal.
that means in rod in which negative charge is flows in this rod negative charge always flow.