Question

What is difference between Ac and dc god bless u all

Answer 1

Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. 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.

Answer 2

Comparison chart

Alternating Current versus Direct Current comparison chartAlternating CurrentDirect CurrentAmount of energy that can be carriedSafe to transfer over longer city distances and can provide more power.Voltage of DC cannot travel very far until it begins to lose energy.Cause of the direction of flow of electronsRotating magnet along the wire.Steady magnetism along the wire.FrequencyThe frequency of alternating current is 50Hz or 60Hz depending upon the country.The frequency of direct current is zero.DirectionIt reverses its direction while flowing in a circuit.It flows in one direction in the circuit.CurrentIt is the current of magnitude varying with timeIt is the current of constant magnitude.Flow of ElectronsElectrons keep switching directions - forward and backward.Electrons move steadily in one direction or 'forward'.Obtained fromA.C Generator and mains.Cell or Battery