When magnetic flux through a coil is changed, the variation of induced current in the coil with time is as shown in graph. If
resistance of coil is 10 $Ω$ , then the total change in flux of coil will be :

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answer is C.

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Detailed Solution

Change in flux is nothing but area under i-t graph multiplied by Resistance
Area under current time graph shown above is 4 × 0.1/2 = 0.2
As the graph is a triangle.
So flux change will be 0.2×10=2webers

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