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A small sphere of mass m and having char...

A small sphere of mass m and having charge q is suspended by a light thread.

A

Tension in the thread may reduce to zero if another charged sphere is placed vertically below it.

B

tension in the thread is greater than mg if another charged sphere is held in the horizontal line in which first sphere stays inequlibrium.

C

tension in the thread may increases to twice of its original value if another charged sphere is placed vertically below it

D

tension in the thread is always equal to mg.

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The correct Answer is:
A, B, C
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