Question Detail
Question
If a conducting loop is moving with velocity 'v' into a uniform magnetic field 'B' (points into the screen) and has a side length 'D' within the field, what is the induced EMF (ε) according to the derivation on page 21?
Correct Answer
Option B is the correct answer.
Detailed Explanation
On page 19, the derivation shows dΦB/dt = BDdx/dt = -BDv. According to Faraday's Law (ε = -dΦB/dt), the magnitude of the EMF is ε = BDv. Page 21 further confirms this with 'gives the EMF ⇒ ε = BDv'.
Hint
Look for the derivation of Motional EMF, specifically the final magnitude of EMF, on pages 19-21.