Question

3. An electric generator consists of 100 turns of wire formed into a rectangular loop 50.0 cm by 30.0 cm, placed entirely in a uniform magnetic field with magnitude B = 3.50 T. What is the maximum value of the emf produced when the loop is spun at 1000 rev/min about an axis perpendicular to B ?

Answer 1

The amplitude of EMF

$${\cal E}_0=BN\omega A\\ =3.50*100*6.28*1000/60*0.5*0.3\\ =5495\:\rm V$$