An electron moves in a circular orbit with a uniform speed v. It produces a magnetic field Bat the centre of the circle. The radius of the circle is proportional to :
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a
vB
b
vB
c
Bv
d
Bv
answer is A.
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Detailed Solution
Magnetic field due to circular current carrying ring= μoi2RCurrent i= qv2πrB= μoqv4πr2Thus rα vB
An electron moves in a circular orbit with a uniform speed v. It produces a magnetic field Bat the centre of the circle. The radius of the circle is proportional to :