Question

an alternating current cannot be used for what?​

Answer 1

Answer:

I hope it's help you.

Explanation:

In case of alternating current, the direction of current keeps changinf every 1/100th of a second. Due to changing direction of the current, the metallic ions in the electrolyte keeps shunting between the electrodes that keeps changing polarity. Hence AC current cannot be used in electroplating.

Answer 2

Alternating current cannot be used for charging the batteries .