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JEE Main2012PhysicsElectromagnetic InductionActual

Magnetic flux through a coil of resistance 10 is changed by in 0.1 ~s . The resulting current in the coil varies with time as shown in the figure. Then | | is equal to (in weber)

Options

  1. A6
  2. B4
  3. C2
  4. D8

Correct answer

C. 2

Step-by-step solution

As aligned e= t & or R i= t ( e=R i) & =R(i . t) & =R area under i-t graph = & 10 1 2 4 0.1=2 weber aligned

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