Question

Why Barlow's does not work at AC ?​

Answer 1

Explanation:

Because the current down the spoke into the mercury interacts with the permanent magnets in such a way to move it in a particular direction. If the current was AC the spoke would just vibrate forward and backwards and not have any net rotation.

Answer 2

Answer:

Because the current down the spoke into the mercury interacts with the permanent magnets in such a way to move it in a particular direction. If the current was AC the spoke would just vibrate forward and backwards and not have any net rotation

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