Question
Question: A rectangular coil of 300 turns has an average area of 25cm × 10 cm. The coil rotates with a speed o...
A rectangular coil of 300 turns has an average area of 25cm × 10 cm. The coil rotates with a speed of 50 cps in uniform magnetic field of strength 4 × 10–2 T about an axis perpendicular to the field. The peak value of the induced emf in volt is –
A
300 p
B
3000 p
C
3 p
D
30 p
Answer
30 p
Explanation
Solution
emax = NABw