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NEET 2018 PatternMedium

Q.Two concentric spherical shells have charges +Q and -Q. The potential at centre is

a
Q4πϵ0a\dfrac{Q}{4\pi \epsilon_0 a}
b
Q4πϵ0b\dfrac{Q}{4\pi \epsilon_0 b}
c
zero
d
Q4πϵ0(1/a+1/b)\dfrac{Q}{4\pi \epsilon_0} (1/a + 1/b)

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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