Motional EMF induced across a rod of length L moving with velocity v p…

Question

Motional EMF induced across a rod of length L moving with velocity v perpendicular to a field B is:

Accepted Answer

A. EMF = B L v

1. dΦ/dt = B × (rate of area swept) = B × (L v).
2. So |EMF| = B L v.
3. Direction by Lenz's law.
_Source: syllabus Physics Ch 6 §6.6 Motional EMF_

Answer

EMF = B L / v

Answer

EMF = B v / L

Answer

EMF = B / (L v)

Motional EMF induced across a rod of length L moving with velocity v perpendicular to a field B is: