How many electrons must be added to an isolated spherical conductor o – McqOptions

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1.	How many electrons must be added to an isolated spherical conductor of radius 20cm to produce an electric field 1000N/C just outside the surface?
A.	2.77*1020
B.	2.77*1010
C.	1.77*1010
D.	5.4*1010
Answer» C. 1.77*1010

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