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Figure shows a coil placed in decreasing...

Figure shows a coil placed in decreasing magnetic field applied perpendicular to the plane of coil.The magnetic field is decreasing at a rate of `10T//s`.Find out current in magnitude and direction.

Text Solution

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`phi=B.Aimplies` emf`=A*(dB)/(dt)=2xx10=20V`
`:. i=20//5=4`amp. From Lenz's law direction of current will be anticlockwise.
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