The electric field just outside the surface of a hollow conducting sphere of radius 20 cm has a magnitude of 500 n/c and is directed outward. an unknown charge q is introduced into the center of the sphere and it is noted that the electric field is still directed outward but has decreased to 100 n/c. what is the charge q?
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The electric field just outside the surface of a hollow conducting sphere of radius 20 cm has a magn...
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