Direct current and Alternating current and it's Difference :
Direct current :
If the Current flows in One Direction only it is called a direct current.Direct current is written in short form as D.C ( or d.c.) the current which we get from a cell or a battery is direct current because it always flows in the same direction.
The positive and negative polarity of a direct current is fixed.
some of the source of direct current are dry cell, dry battery , DC generator , solar panel.
Alternating current :
If the current reverses direction after equal interval of time it is called alternating current.
Alternating current is written in short form as AC most of the power station in India generate alternating current the alternating current produce in India rivers its direction every one by 100 second.
The positive and negative polarity of an alternating current is not fixed.
Some of the source which produce alternating current are power house generators , car alternators and bicycle dynamics.
Difference between Alternating current (AC) and Direct current (DC) :
| Basis of Comparison | AC | DC |
| Definition | In AC, the direction of the current keeps reversing periodically. | The direction of the current remains the same in DC. |
| Load Type | AC’s load is resistive, inductive or capacitive. | DC’s load is generally resistive in nature. |
| Frequency | 50 or 60 Hz | Zero |
| Polarity | AC has a polarity (+, -) | It does not have polarity |
| The direction of flowing electrons | The direction of flow of electrons in AC is bidirectional | In DC, the flowing electrons are unidirectional |
| Attained from | Alternators | Generators, battery, solar cell and more. |
| Power Factor | It lies between 0 and 1 | It always remains 1 |
| Passive Parameter | Impedance | Resistance |
| Transmission | We can transmit it over long distance with a few losses | We can transmit it over long distance with negligible losses |
| Purpose | Used in factories, industries, households | Used in electroplating, electrolysis, electronic equipment, and more |