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Q.

An electron is moving around a proton in an orbit of radius 1A0 and produces 16 Wb/m2 of magnetic field at the centre, then find the angular velocity of electron

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a

20π×1016rad/sec

b

10×1016rad/sec

c

52π×1016rad/sec

d

54π×1016rad/sec

answer is B.

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Detailed Solution

B=μ0qω4πr

⇒ω=B×4πrμ0q

=16×4π×10−104π×10−7×1.6×10−19

=10×1016rad/s

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