The volume charge density of a sphere of radius 6 m is 2 µC cm -3 . The number of lines of force per unit surface area coming out from the surface of the sphere is ______x 10 10 NC -1 .[Given : Permittivity of vacuum 
= 8.85x 10 -12 C 2 N -1 -m -2 ]
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(45)
No. of electric field lines per unit area = electric field.
for r = R
= 45x10 10 N/C
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