Distinguish between alternating current and direct current. Explain why alternating current is preferred

Question

Distinguish between alternating current and direct current. Explain why alternating current is preferred

Distinguish between alternating current and direct current. Explain why alternating current is preferred over direct current for transmission over long distances.

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Alternating Current: If the current changes direction after equal intervals of time, it is called alternating current. The positive and negative generator. polarities of AC are not fixed.

Direct Current: If the current always flows in the same direction, it is called direct current. It can be obtained from a cell or a battery. The positive and negative polarities of DC are fixed for long distance transmission. AC is preferred as it caused minimum loss of energy during transmission.