HISTORY OF ALTERNATING CURRENT William Stanley, Jr. designed one of the first practical devices to transfer AC power efficiently between isolated circuits. The AC power system used today developed rapidly after 1886, and included contributions by Nikola Tesla and Carl Wilhelm Siemens. ALTERNATING CURRENT 3
WHAT IS ALTERNATING CURRENT ? Alternating current electricity is the type of electricity commonly used in homes and businesses throughout the world. AC electricity is created by an AC electric generator, which determines the frequency. An AC waveform can be sinusoidal, square, or sawtooth-shaped. Some AC waveforms are irregular or complicated. ALTERNATING CURRENT 4 . Alternating current flows first in one direction and then in the other direction. ALTERNATING CURRENT 5
ADVANTAGES The single greatest advantage of alternating current is that AC current can be transformed and DC current cannot be transformed. It can be controlled by a wide range of components eg.resistors,capacitors and inductors. This allows high-voltage electrical power to be distributed with smaller wires and lower amperage. ALTERNATING CURRENT 6
HOW TO GENERATED ? ALTERNATING CURRENT 7
DIRECT ALTERNATING ALTERNATING CURRENT 8
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