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A hollow insulated conduction sphere is given a positive charge of 10 mC. What will be the electric field at the centre of the sphere if its radius is 2 metres?

(a) Zero

(b) 5 uCm-2

(c) 20 uCm-2

(d) 8 uCm-2

Simran Bhatia , 11 Years ago
Grade 11
anser 2 Answers
Amit Saxena

Last Activity: 11 Years ago

(a)

Charge resides on the outer surface of a conducting hollow sphere of radius R. We consider a spherical surface of radius r < R. By Gauss''s theorem,

 

 

 

 

i.e., electric field inside a hollow sphere is zero.

Maham Hanif

Last Activity: 5 Years ago

Field inside a conducting sphere is zero.
Formula of gausses law,
Φ=q/∈0
put q=0, final ans will be zero.
Hope it helps!

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