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A charge Q is kept at the centre of a circle of radius r. A test charge $q_{0}$ is carried from a point X to the point Y on this circle such that arc XY subtends an angle of $60^{\circ}$ at the centre of the circle. The amount of work done in this process will be
Option: 1 $\frac{1}{4 \pi \varepsilon _{0}}\frac{Qq_{0}}{2r}$
Option: 2 $\frac{1}{4 \pi \varepsilon _{0}}\frac{\sqrt{3}Qq_{0}}{2r}$
Option: 3 Zero
Option: 4 $\frac{1}{4 \pi \varepsilon _{0}}\frac{\sqrt{3}Qq_{0}}{r}$

Answers (1)

The potential on the circle is same at all points. Therefore workdone=0

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Safeer PP

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