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Is electrical power AC or DC?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

Electrical power exists in both AC and DC forms. DC power is constant and unidirectional, used in batteries and electronic devices. AC power varies sinusoidally and is used for power distribution because it's more efficient to transmit over long distances. The power formula P = V × I applies to both, though AC power calculations may involve additional factors like power factor.

General · Class 12