Questions
Magnetic induction at the centre of a circular loop of area square meter is 0.1 tesla. The magnetic moment of the loop is ( is permeability of air)
detailed solution
Correct option is B
B = μoi2rm = iπr2Bm = μoi2riπr2 = μo2πr3If area=πr2 = πm = 2πr3μoβ = 2πμo.1 = 0.2πμoTalk to our academic expert!
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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
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