Uses of ac and dc current

1.	Uses of ac and dc current
Answer» Alternating Current (AC): In alternating current the electric charges flow changes its direction periodically. AC is the most commonly used and most preferred electric power for household equipment office and buildings, etc. It was first tested based on the principles of Michael Faraday in 1832 using a dynamo electric generator.Alternating current can be identified in wave form called as sine wave, in other words it can be said as the curved line. These curved lines represent electric cycles and is measured per second. The measurement is read as Hertz or Hz.Direct Current: Unlike alternating current, the flow of current in direct current do not changes periodically. The current flows in a single direction in a steady voltage. The major uses of DC is to supply power for electrical devices and also to charge batteries. For example, mobile phone batteries, flashlights, flat-screen television, hybrid and electric vehicles. DC has the combination of plus and minus sign, a dotted line or a straight lines.

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