Question

What is ac and dc and their sources

Answer 1

A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage. The usual waveform of alternating current (ac) in most electric power circuits is a sine wave.

Answer 2

A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage. The usual waveform of alternating current (ac) in most electric power circuits is a sine wave.