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The electrons in DC current flow from high electron density to low electron density. The DC current has constant magnitude and direction and as the direction and magnitude not changes so the frequency of DC current is zero. The DC current is a unidirectional flow of current or electric charge unlike AC it does not change the magnitude and polarity with time. Dishwashers, washing machines, Fans, Bulbs.

AC power is used in larger applications and appliances like Freezers, AC.

The AC current can be converted into a high voltage to low voltage and low to high voltage efficiently using the transformer.

Energy Loss in AC is less so widely used in transmission.

AC is used for long-distance transmission for Offices and Homes.

The rate at which the waveform repeats itself is called frequency or you can say the the number of times the waveform repeats in one second is called s Si unit is HertzĪmplitude:-The magnitude of the signal is called amplitude Types of AC Waveforms Sine Wave

You can also say the total amount of time taken by waveform to complete its one complete cycle is called time period.

The total amount of time taken by a waveform to repeat itself or to repeat its one cycle is called time period. Here the piston has two strokes one upward and the other backward on the upward stroke, the water moves in a clockwise direction and in the backward direction the water displaces in an anticlockwise direction so in this way water direction changes its direction periodically with oscillation of the piston.Įvery Ac waveform has a divider line or called the zero voltage line that divides the waveform into two halves as the Ac current changes the magnitude and direction periodically so on every complete cycle it reaches zero volts.ĪC Waveform characteristics Time Period (T) Suppose a piston is inserted inside a pipe and connected with a rotating rod as in the pin pic below. Let’s Understand the Ac current with the water analogy