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Electric charge Q is uniformly distribut...

Electric charge Q is uniformly distributed around a thin ring of radius a. find the potential a point P on the axis of the ring at a distance x from the centre of the ring .

A

Potential at p is `(KQ)/(2R)`

B

Magnitude of electric field at P may be greater than `(sqrt(3)KQ)/(8R^(2))`

C

Magnitude of electric field at P must be equal to `(sqrt(3)KQ)/(8R^(2))`

D

Magnitude of electric field at P cannot be less than `(sqrt(3)KQ)/(8R^(2))`

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-ELECTROSTATICS-ADDITIONAL PRACTICE EXERCISE (LEVEL -II LECTURE SHEET (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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