AIPMT MAINS2010Physics-Magnetism
AIPMT MAINS 2010 Physics Magnetic Field due to Current MCQ Question
Type: MCQ-numerical-Hard-Class 12
A current loop consists of two identical semicircular parts each of radius R, one lying in the x-y plane and the other in x-z plane. If the current in the loop is i. The resultant magnetic field due to the two semicircular parts at their common centre is
A
μ₀i/2√2R
B
μ₀i/2R
C
μ₀i/4R
D
μ₀i/√2R
Correct Answer
Option A
Detailed Explanation
The magnetic field is the vector sum of the fields due to each semicircular part. Using Biot-Savart law, the resultant field is μ₀i/2√2R.
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