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Practice

Electrostatics

Electric Charge

Quick practice

Question 1 of 5

A thin spherical conducting shell of radius R has a charge q. Another charge Q is placed at the center of the shell. The electrostatic potential at a point P at a distance \frac{R}{2} from the center of the shell is

A

\frac{2 Q}{4 \pi \varepsilon_0 R}-\frac{q}{4 \pi \varepsilon_0 R}

B

\frac{2 Q}{4 \pi \varepsilon_0 R}+\frac{q}{4 \pi \varepsilon_0 R}

C

\frac{2 Q}{4 \pi \varepsilon_0 R}

D

\frac{2 Q}{4 \pi \varepsilon_0 R}+\frac{2 q}{4 \pi \varepsilon_0 R}

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