Which expression gives the maximum (peak) magnitude of the emf induced in a coil of…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Which expression gives the maximum (peak) magnitude of the emf induced in a coil of

N

turns and area

A

rotating with uniform angular speed

\omega

in a uniform magnetic field of flux density

B

? (a)

2 N B A \omega

(b)

N B A \omega \sin \omega t

(c)

N B A \omega

(d)

\dfrac{N B A \omega}{\sqrt{2}}