Q.

A thin spherical shell is charged by some source. The potential difference between the two points C and P (in V shown in the figure is: (Take 14πϵ0=9×109 SI units)
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a

zero

b

3 × 105

c

0.5 × 105

d

1 × 105

answer is B.

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Detailed Solution

Potential of a spherucal shell is same at all points inside the shell as well as on the surface. 

Therefore, potential difference between P and C is zero.

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