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Electromagnetic Induction — Easy JEE physics MCQ

A coil of $100$ turns has magnetic flux changing from $0.02$ Wb to $0.04$ Wb in $0.1$ s. The induced EMF is:
  1. A. $20$ V
  2. B. $2$ V
  3. C. $200$ V
  4. D. $0.2$ V

Solution

$\varepsilon = -N\frac{d\phi}{dt} = 100 \times \frac{0.04 - 0.02}{0.1} = 100 \times 0.2 = 20$ V

PHYSICS

easy • PYQ Reworded
Question
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A coil of 100100 turns has magnetic flux changing from 0.020.02 Wb to 0.040.04 Wb in 0.10.1 s. The induced EMF is:
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Electromagnetic Induction — Easy JEE Physics MCQ | MyGoalPrep