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If a small sphere of mass m and charge q...

If a small sphere of mass m and charge q is hanged from a silk thread at an angle `theta` with the surface of a vertical charged conducting plate, then for equilibrium of sphere the surface charge density of the plate -

A

Thetotal acceleration of the sphere as a functionof `theta` is `gsqrt(1+3cos^(2)theta)`

B

The total tension in the thead as a function of `theta` is `3mg cos theta`

C

The thread tension at the moment when the vertical component of the sphere velocity is maximum will be `mg sqrt(3)`

D

The thread tension at the moment when the vertical component of the sphere's velocityis maximum will be mg

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A, B, C
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