An electron moves in a circular orbit with a uniform speed v. It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The time period of electron moving in a circular orbit
T = 
= 
and equivalent current due to electron flow
I = 
Magnetic field at center of circle
B = 
B = r ∝ 
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