Questions
If electric field in a region is radially outward with magnitude E = Ar, the charge contained in a sphere of radius r centred at the origin is
a
14πε0Ar3
b
4πε0Ar3
c
14πε0r3
d
4πε0Ar3
detailed solution
Correct option is B
E=q4πε0r2⇒Ar=q4π∈0r2⇒q=4πε0Ar3Talk to our academic expert!
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If q is the charge per unit area on the surface of a conductor, then the electric field intensity at a point on the surface is
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