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Can a sphere of radius 1cm hold a charge of 1 coulomb?

Asked by DELFIN BIJU 23rd July 2013, 10:07 PM
Answered by Expert
Answer:
the electric field that would be generated by 1C on a sphere of radius 0.01m on the surface of the sphere
 E = kq/r^2
=(9*10^9)/(1* 10^-4)
=9*10^13 V/m
the dielectric strength of air is about 3*10^6 V/m
so electric fiels generated by this sphere of charge will cause the air molecule to break downand nuteralise much of the sphere"s charge. hence answer is no.
Answered by Expert 23rd July 2013, 10:54 PM
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