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Question
Electric field intensity in free space at a distance ‘r’ outside the charged conducting sphere of radius ‘R’ in terms of surface charge density ‘ a ’ is............................
(a)`sigma / in_0[R/r]^2`
(b)`in_0/sigma[R/r]^2`
(c)`R/r[sigma/in_0]^2`
(d)`R/sigma[r/in_0]^2`
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Solution
(a) `sigma / in_0[R/r]^2`
Electric field intensity in the free space outside the charged conducting sphere in terms of surface charged density is given as
`E=sigma / in_0[R/r]^2`
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