A square, single-turn coil 0.293 m on a side is place with itsplane perpendicula

Question

A square, single-turn coil 0.293 m on a side is place with itsplane perpendicular to a constant magnetic field. An emf of 28.6 mVis induced in the winding while the area of the coil decreases at arate of 0.102 m2/s. What is the magnitude of themagnetic field? Answer in units of T. A square, single-turn coil 0.293 m on a side is place with itsplane perpendicular to a constant magnetic field. An emf of 28.6 mVis induced in the winding while the area of the coil decreases at arate of 0.102 m2/s. What is the magnitude of themagnetic field? Answer in units of T.

Explanation / Answer

given E.m.f = 28.6 *10-3v rate of change of area = dA/dt =0.102m2/s we know that E.m.f = -d/dt but = B.A    E.m.f = -BdA/dt -B = E.M.f/dA/dt if we take modulas then B =28.6*10-3v/0.102m2/s solve B = ---------T

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