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A circular wire loop with a radius of 0.33 m is located in an external magnetic field of 0.60 T that is perpendicular to the plane of the loop. The magnetic field drops to zero in 1.5 seconds. (The plus and minus signs for magnetic field refer to opposite directions through the coil.) Find the magnitude of the average induced emf during this interval.
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Let induced emf be `epsi` ,so
`=(NxxBA)/(Deltat) ` V
N=no. of the turn =1
`Deltaphi=` change in magnetic field=`.60xxpixx(.33)^2`
`Deltat=` change in time=1.5 sec.
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