D C electricity can be stored in a capacitor and a rechargeable battery. there is no way to store a c. when we connect a battery with A C Supply then It will charge during positive half cycle and discharge during negative half cycle. Positive half cycle cancels the negative half. so the average voltage in a complete cycle is Zero. A C changes their polarity up to its frequency times in a second. But the battery cannot change their terminals with the same speed. That is the second reason we cannot save a c power. Although it can be obtained from stored D C power with the help of an inverter.
Can we store ac power? EEE INTERVIEW QUESTION SERIES
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