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What is AC and DC

What is AC/DC ?

The polarity is called different, AC is called zero line and fire line, DC is called positive and negative.

Input cable is different, AC input, cable can be regardless of polarity. For DC input, the cable must distinguish between positive and negative terminals.

If the frequency is different, the AC power supply parameters need to list the frequency, such as 50Hz. DC power supplies generally have no frequency parameters.

The relationship between the current direction and time is different, and the current direction of AC is alternately changed according to the natural period. The current direction of DC is constant from positive to negative.

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