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In a coil of resistance 100 Omega , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is …….. |
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Answer» 250 Wb `therefore IR=(Deltaphi)/(Deltat)` `therefore Deltaphi=IR Deltat` `=R (I Deltat)` `=R xx ("AREA of GRAPH" I to t)` `=100xx1/2 xx0.5xx10` =250 Wb
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