AIPMT MAIN2008Physics-Electrostatics
AIPMT MAIN 2008 Physics Electric Field MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A thin conducting ring of radius R is given a charge +Q. The electric field at the centre O of the ring due to the charge on the part AKB of the ring is E. The electric field at the centre due to the charge on the part ACDB of the ring is
A
3 E along OK
B
3 E along KO
C
E along OK
D
E along KO
Correct Answer
Option C
Detailed Explanation
The electric field due to the entire ring at the center is zero. The field due to part AKB is E, so the field due to ACDB must be equal and opposite to maintain zero net field, hence E along OK.
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