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A table tennis ball covered with a condu...

A table tennis ball covered with a conducting paint is suspended by a silk thread so that it hangs between tow metal plates. One plate is earthed, when the other plate is connected to a high voltage generator, what will happen to the ball.

A

is attached to the high voltage

B

hangs without moving

C

swings backward and forward hitting the plates

D

is repelled to the earthed plate and stays there

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