Identify the correct expression for the magnitude of emf induced in a straight…

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

Problem

Identify the correct expression for the magnitude of emf induced in a straight conductor of length

\ell

moving with speed

v

normal to a uniform magnetic field of magnitude

B

. (a)

2B\ell v

(b)

B\ell v

(c)

\dfrac{1}{2}\,B\ell v

(d)

0