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JEE Main202131 Aug 2021Evening ShiftPhysicsElectromagnetic InductionActual

A coil is placed in a magnetic field B → as shown below : A current is induced in the coil because B → is :

Options

  1. Aparallel to the plane of coil and increasing with time
  2. Boutward and increasing with time
  3. Coutward and decreasing with time
  4. Dparallel to the plane of coil and decreasing with time

Correct answer

C. outward and decreasing with time

Step-by-step solution

Lenz's law state that the direction of the induced current is such that it opposes its cause of generation, so, B → , must not be parallel to the plane of coil for non-zero flux and according to Lenz's law if B is outward it should be decreasing for anticlockwise induced current.

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