question_answer

40. The above figure shows electric field E at a distance r in any direction from the origin O. The electric field E is due to

A)  a charged hollow metallic sphere of radius OP with centre at O

B)  a charged solid metallic sphere of radius OP with centre at O

C)  a uniformly charged non-conducting sphere of radius OP with centre at O

D)  a uniformly charged non-conducting hollow sphere of radius OP with centre at O

Correct Answer: C

Solution :

                For a uniformly charged non-conducting sphere the graph between electric field and distance from the centre is given by