At distance of $5$ $cm$ and $10$ $cm $ outwards from the surface of a uniformly charged solid sphere, the potentials are $100$ $V$ and $75$ $V$ respectively . Then
At distance of $5$ $cm$ and $10$ $cm $ outwards from the surface of a uniformly charged solid sphere, the potentials are $100$ $V$ and $75$ $V$ respectively . Then
- A
potential at its surface is $150 $ $V.$
- B
the electric potential at its centre is $225$ $V$.
- C
the electric field on the surface is $1500$ $V/m$.
- D
all of the above
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