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Question
A circle of radius R is drawn with charge + q at the centre. A charge q0 is brought from point B to C, then work done is:
A circle of radius R is drawn with charge + q at the centre. A charge q0 is brought from point B to C, then work done is:
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Solution
The correct option is C Zero
The potential at any point on the circumference is equal. It means the circle surface will represent a equipotential surface. So change in potential at two point on surface is zero i.e dV=0The work done =qdV=0
The potential at any point on the circumference is equal. It means the circle surface will represent a equipotential surface. So change in potential at two point on surface is zero i.e dV=0
The work done =qdV=0
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