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An insulating spherical shell with inner radius 25.0 cm and outer radius 60.0 cm carries a charge of + 150.0 μC uniformly distributed over its outer surface. Point a is at the center of the shell, point bis on the inner surface and point c is on the outer surface.

Part A) What will a voltmeter read if it is connected between a and b?

Part B) What will a voltmeter read if it is connected between b and c?

Part C) What will a voltmeter read if it is connected between c and infinity?

Part D) What will a voltmeter read if it is connected between a and c?

Part E) Which point is at higher potential, a or b?

Q&A Education