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MHT CET202314 May 2023Morning ShiftPhysicsElectromagnetic InductionActual

A magnetic field of 2 10⁻² ~T acts at right angles to a coil of area 100 ~cm ^2 with 50 turns. The average e.m.f. induced in the coil is 0.1 ~V , when it is removed from the field in time ' t '. The value of ' t ' is

Options

  1. A2 10⁻³ ~s
  2. B0.5 ~s
  3. C0.1 ~s
  4. D1 ~s

Correct answer

C. 0.1 ~s

Step-by-step solution

array ll & e =- d dt =- ( ₂- ₁ ) t =- (0- NBA ) t & 0.1= 50 2 10⁻² 10⁻² t array The value of ' t ' is, t = 10⁻² 0.1 =0.1 ~s

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