Electricity & Megnetism

Why would power distribution systems be less effective without alternating current?

Most larger power distribution systems are AC. The power is transmitted from power stations at a much higher voltage to minimize the power loss. At the end of the line where the consumer is located, the voltage level is reduced to a safe value for domestic use. The crucial factor is that it is much easier to increase and decrease AC voltage than DC, so AC is used in most large power distribution systems.

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