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A Conducting Sphere of Radius 20 Cm Has a Charge

Question 30

Multiple Choice

A conducting sphere of radius 20 cm has a charge Q placed on it producing a field of magnitude E0 at its surface. More charge is added to the surface until the magnitude of the field at the surface is 2 E0. How much charge was added to the surface?


A) Q/2
B) Q
C) 2 Q
D) 1.4 Q
E) 3 Q

Correct Answer:

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