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  • A rectangular coil  is rotated anticlockwise with a uniform angular velocity about the axis

A rectangular coil \mathrm{ABCD} is rotated anticlockwise with a uniform angular velocity about the axis shown in figure. The axis of rotation of the coil as well as the magnetic field B are horizontal. The induced e.m.f. in the coil would be maximum when
          

Option: 1

the plane of the coil is vertical 


Option: 2

the plane of the coil makes an angle of  \mathrm{45^{\circ} } with the magnetic field the plane of


Option: 3

the coil is parallel to the magnetic field the plane of the coil makes an angle of


Option: 4

30^{\circ} with the magnetic field.


Answers (1)

best_answer


\mathrm{\mathrm{e}=\mathrm{e}_0 \sin \omega \mathrm{t} }
\mathrm{\mathrm{e}_{\max }=\mathrm{e}_0 \ \ \ when \ \ \sin \omega \mathrm{t}=1 }
\mathrm{or \ \omega \mathrm{t}=\theta=\pi / 2 }

Posted by

avinash.dongre

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