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Eamcet Physics
2 nd Year : Unit 4.2 ( Alternating Current ) - Electromagnetic Induction

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Two different coils have self - inductances L₁ = 8 mH and L₂ = 2 mH. The current in one coil is also increased at the same constant rate. At a certain instant of time, the power given to the two coils is the same. At the time, the current, the induced voltage and he energy stored in the first coil are i₁, V₁ and W₁ respectively. Corresponding values for the second coi at the same instant are i₁, V₂ and W₂ respectively. Then
1) (i₁ / i₂ )= (1/4 )
2) (i₁ / i₂ )= 4
3) (W₁ / W₂ )= (1/4)
4) (V₁ / V₂ )= 4

A. a, d are true

B. c, d are true

C. a, c, d are true

D. Only b is true

E. None of the above

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Correct choice: C

Explanation:

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Eamcet Physics 2 nd Year : Unit 4.2 ( Alternating Current ) - Electromagnetic Induction

Eamcet Physics
2 nd Year : Unit 4.2 ( Alternating Current ) - Electromagnetic Induction