AIIMS2011Physics-MF Due to Current Carrying Wire
AIIMS 2011 Physics Magnetic Fields MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Magnetic field at a distance a from long current carrying wire is proportional to
A
1/a
B
1/a²
C
1/√a
D
1/a³/²
Correct Answer
Option A
Detailed Explanation
The expression for magnetic field is case of a long current carrying wire is B = μ0I / 2πa.
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