A coil of cross-sectional area 400 cm2 having 30 turns is making 1800 rev/min in a magnetic field of 1 T. The peak value of the induced emf is

Question

A coil of cross-sectional area 400 cm2 having 30 turns is making 1800 rev/min in a magnetic field of 1 T. The peak value of the induced emf is (A) 0.4 V (B) 0.6 V (C) 226 V (D) 2.26 V

Tardigrade Admin · Accepted Answer

Induced emf e max =NBAω ∴ e max =30× 1× ( (400/10000) )× ( 1800× (2π /60) ) e max =226 V

Q. A coil of cross-sectional area $400 c m^{2}$ having 30 turns is making 1800 rev/min in a magnetic field of 1 T. The peak value of the induced emf is

0.4 V

0.6 V

226 V

2.26 V

Induced emf $e_{m a x} = NB A ω$ $∴$ $e_{m a x} = 30 \times 1 \times (\frac{400}{10000}) \times (1800 \times \frac{2 π}{60})$ $e_{m a x} = 226 V$

Q. A coil of cross-sectional area 400cm2 having 30 turns is making 1800 rev/min in a magnetic field of 1 T. The peak value of the induced emf is