the electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 10 cm  and outer radius 20 cm  has mangnitude 450 N/C and is directed outward. when a particle of unknown charge Q is introduced into the center of the sphere. the electric field at P is still directed outward but is now 180N/C. (a) What was the net charge emclosed by the outer surface before Q was introduced ?  (b) What is charge Q? After Q is introduced.what is the charge on the (c) inner and (d) outer surface of the condutor?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter19: Electric Forces And Electric Fields
Section: Chapter Questions
Problem 57P: A solid conducting sphere of radius 2.00 cm has a charge 8.00 μC. A conducting spherical shell of...
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the electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 10 cm  and outer radius 20 cm  has mangnitude 450 N/C and is directed outward.

when a particle of unknown charge Q is introduced into the center of the sphere. the electric field at P is still directed outward but is now 180N/C.

(a) What was the net charge emclosed by the outer surface before Q was introduced ? 

(b) What is charge Q? After Q is introduced.what is the charge on the (c) inner and (d) outer surface of the condutor?

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