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Charges Q, 2Q, and -Q are given to three...

Charges `Q, 2Q`, and `-Q` are given to three concentric conducting spherical shells `A, B` and `C` respectively as shown in figure. The ratio of charge on the inner and outer surface of shell C will be

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The correct Answer is:
1.5
Due to induction of charge on surface facing each other will be equal and opposite.
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