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MHT CET202016 Oct 2020Morning ShiftPhysicsElectromagnetic InductionActual

A coil of 'n' turns and resistance 'R' is connected in series with a resistance R 2 The combination is moved for time 't' second through magnetic flux ₁ to ₂ . The induced current in the circuit is

Options

  1. A2 n ( ₁- ₂ ) 3 R t
  2. Bn ( ₁- ₂ ) 3 R t
  3. Cn ( ₁- ₂ ) R t
  4. D2 n ( ₁- ₂ ) R t

Correct answer

A. 2 n ( ₁- ₂ ) 3 R t

Step-by-step solution

Total resistance = R + R 2 = 3 R 2 i _ induced = e _ induced 3 R 2 = d dt 3 R 2 = 2 n 3 Rt ( ₁- ₂ )

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