CUET · PHYSICS · PYQ PAPER 2025
A square shaped coil of 10 cm side, having 100 turns, is placed perpendicular to a magnetic field which is increasing at the rate of 1.0 T/s. The induced emf in the coil would be
- A 0.75 V
- B 1.0 V
- C 0.5 V
- D 0.1 V
Answer & Solution
Correct Answer
(B) 1.0 V
Step-by-step Solution
Detailed explanation
\( A = s^2 = (0.1 \text{ m})^2 = 0.01 \text{ m}^2 \) \( \mathcal{E} = N \frac{d\Phi_B}{dt} = N A \frac{dB}{dt} \) \( \mathcal{E} = 100 \times 0.01 \text{ m}^2 \times 1.0 \text{ T/s} = 1.0 \text{ V} \)
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