MHT CET 2024 Physics question
A particle having a charge 50 e is revolving in a circular path of radius 0.4 m with 1 r. p. s. The magnetic field produced at the centre of the circle is
Answer: (D)
Solution
A charge revolving with frequency is equivalent to a circular current A. The magnetic field at the centre of a circular loop is \dfrac{μ_0 I}{2r}\dfrac{μ_0×8×10^{-18}}{2×0.4}$ =
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