AC Vs DC

*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.

*Flow of Electrons :

AC-Electrons keep switching directions - forward and backward.

DC-Electrons move steadily in one direction or 'forward'.

*Obtained from :

AC-A.C Generator and mains.

DC-Cell or Battery.

*Passive Parameters :

AC-Impedance.

DC-Resistance only

*Power Factor :

AC-Lies between 0 & 1.

DC-it is always 1.

*Types :

AC-Sinusoidal, Trapezoidal, Triangular, Square.

DC-Pure and pulsating.