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PYQs/Physics/Electromagnetic Induction

Physics2019easy

Electromagnetic Induction

In which of the following devices, the eddy current effect is not used?

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Electromagnetic Induction

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A 800 turn coil of effective area 0.05 $m^{2}$ is kept perpendicular to a magnetic field $5\times 10^{-5}T$ . When the plane of the coil is rotated by $90^{\circ}$ around any of its coplanar axis in 0.1 s, the emf induced in the coil will be:

Other years

In the above diagram, 1 strong bar magnet is moving towards solenoid – 2 from solenoid – 1. The direction of induced current in solenoid – 1 and that in solenoid – 2, respectively, are through the directions:

The magnetic energy stored in an inductor of inductance 4 $\mu$ H carrying a current of 2A is:

A square loop of side 1 m and resistance 1 $\Omega$ is placed in a magnetic field of 0.5 T. If the plane of loop is perpendicular to the direction of magnetic field, the magnetic flux through the loop is

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