ElectrostaticsMedium
Question
Three concentric conducting spherical shells have radius r, 2r and 3r, and Q1, Q2 and Q3 are final charges respectively. Innermost and outermost shells are already earthed as shown in figure. choose the wrong statement
Options
A.Q1 + Q3 = - Q2
B.Q1 = 
C.
= 3
= 3D.
Solution
Potential at outermost shell
= 0⇒ Q1 + Q2 + Q3 = 0 ....(i)
and potential at innermost surface
= 0⇒
= 0From eq. (i) & (ii) Q1 =
and also 
= 3.Create a free account to view solution
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