A circular coil of radius 6 cm and 20 turns rotates about its vertical diameter with an…
Physics · Class 12 · CBSE — Alternating Current
A circular coil of radius 6 cm and 20 turns rotates about its vertical diameter with an angular speed of 40 rad s–1 in a uniform horizontal magnetic field of magnitude 2 × 10–2 T. If the coil form a closed loop of resistance 8 Ω, then the average power loss due to joule heating is
- 2.07 × 10–3 W
- 1.23 × 10–3 W
- 3.14 × 10–3 W
- 1.80 × 10–3 W
Answer
(A) 2.07 × 10 –3 W
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