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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSelf and mutual inductorHard2 minPYQ_2007

PhysicsHardsingle choice

A rectangular coil ABCD which is rotated at a constant angular velocity about an horizontal as shown in the figure. The axis of rotation of the coil as well as the magnetic field $B$ are horizontal. Maximum current will flow in the circuit when the plane of the coil is

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Solution:

Torque on the coil is $τ = nIB A cos θ$ . If coil is set with its plane parallel to direction of magnetic field B, then $θ = 0^{\circ}, cos θ = 1$ $\Rightarrow τ = n I B A .1 = n I B A = ma x im u m$ Hence, $I =$ maximum $($ as $n, B, A$ are constant $)$

Stream:VITEEESubject:PhysicsTopic:EMI/ACSubtopic:Self and mutual inductor

⏱ 2mℹ️ Source: PYQ_2007

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