NEET 2026 Physics question
A 100-turn closely wound circular coil of radius 5 cm has a magnetic field of T at its centre. The current flowing through the coil, and the magnitude of the magnetic moment of this coil are, respectively : (Take T m/A)
Answer: (4)
Solution
Field at the centre of an -turn circular coil: . So \dfrac{2RB}{μ_0 N}\dfrac{2×5×10^{-2}×3.14×10^{-3}}{4π×10^{-7}×100}\dfrac{3.14×10^{-4}}{1.2566×10^{-4}}$ =
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