GENERAL KNOWLEDGE

Detailed explanation-1: -Alternating current (AC) is an electric current that periodically reverses its direction, in contrast to direct current (DC) which only flows in a single direction and cannot change periodically. An alternating current is produced by switching the potential between two terminals in a fixed time interval.

Detailed explanation-2: -Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.

Detailed explanation-3: -Alternating current describes the flow of charge that changes direction periodically. As a result, the voltage level also reverses along with the current. AC is used to deliver power to houses, office buildings, etc.

Detailed explanation-4: -An alternating current will flip the direction of charge flow (60 times a second in North America (60 Hz) and 50 times a second in Europe (50 Hz)). This is usually caused by a sinusoidally varying current and voltage that reverses directions, creating a periodic back and forth motion for the current (see Figure 1).