Which expression gives the magnetic flux through a single-turn loop of area placed in…

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

Problem

Which expression gives the magnetic flux

\Phi_B

through a single-turn loop of area

A

placed in a uniform magnetic field of magnitude

B

that makes an angle

\theta

with the loop’s area vector? (a)

BA\cos^{2}\theta

(b)

BA\cos\theta

(c)

BA

(d)

BA\sin\theta