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Problem
Problem
Three concentric conducting spherical shells carry charges
+
4
Q
+4Q
+
4
Q
on the inner shell
−
2
Q
-2Q
−
2
Q
on the middle shell and
+
6
Q
+6Q
+
6
Q
on the outer shell. The charge on the inner surface of the outer shell is a. 0 b.
4
Q
4Q
4
Q
c.
−
Q
-Q
−
Q
d.
−
2
Q
-2Q
−
2
Q
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