STANDARDPhysics-Magnetism
STANDARD Physics Magnetic Field of a Coil MCQ Question
Type: MCQ-numerical-Medium
The magnitude of the magnetic field at the centre of the tightly wound 150 turn coil of radius 12 cm carrying a current of 2 A is
A
18 G
B
19.7 G
C
15.7 G
D
17.7 G
Correct Answer
Option C
Detailed Explanation
The magnetic field at the center of a coil is given by B = (μ₀NI)/(2R). Substituting the given values, we find B = 15.7 G.
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