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What Is The Main Difference Between DC And AC ?

 


We have noticed many times about AC and DC but very few of us know exactly the difference between them, and this is mostly the favorite question of the interviewer, so today we will see their main difference between AC and D

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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