AC Power One of the most important electrical terms to know is AC. Ever since the Tesla-Westinghouse power plant at Niagara Falls came online in 1885, alternating current (AC) power has been the ...

Electrical energy is easy to move from place to place, using wire or cables. However, electrical energy must be changed into other forms of energy before we can use it. The symbol for power is \(P ...

Charge is a property of a body which experiences a force in an electric field ... for 'amperes', the unit for current (also abbreviated as 'A') but the symbol for 'current' is 'I'.