H2 Physics 18 - Electromagnetic Induction: E.M.F. in a Rotating Coil

What you will learn

• 120 turns, area 40 cm^2, rotating at 50 Hz in a 0.15 T field; find peak and r.m.s. e.m.f.
• Flux Phi = B A cos(omega t); Faraday gives e.m.f. = N B A omega sin(omega t).
• omega = 2 pi f = 100 pi rad/s; peak e.m.f. E_0 = N B A omega = 7.2 pi which is about 22.6 V.