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.

2- Cause of the direction of flow of electrons

AC-Rotating magnet along the wire.

DC-Steady magnetism along the wire.

3- Frequency 

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

DC-The frequency of the direct current is zero.

4- Direction 

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

DC-It flows in one direction in the circuit.

5- Current 

AC-It is the current of magnitude varying with time

DC-It is the current of constant magnitude.

6- Flow of Electrons 

AC-Electrons keep switching directions – forward and backward.

DC-Electrons move steadily in one direction or ‘forward’.

7- Obtained from 

AC-A.C Generator and mains.

DC-Cell or Battery.

8- Passive Parameters 

AC-Impedance.

DC-Resistance only

9- Power Factor 

AC-Lies between 0 & 1.

DC-it is always 1.

10- Types 

AC-Sinusoidal, Trapezoidal, Triangular, Square.

DC-Pure and pulsating.

11- Equipment

AC– power Generation Equipment have more efficiency

DC– power Generation Equipment have less efficiency

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