C: E&M · Unit 5: Electromagnetism
Electromagnetic Induction
A square loop (side 0.20 m) sits perpendicular to a magnetic field that increases uniformly from 0.10 T to 0.50 T in 0.20 s. The loop has 50 turns.
(a)2 points
Calculate the change in magnetic flux through one turn.
(b)3 points
Calculate the magnitude of the induced EMF.
(c)2 points
State the direction of the induced current (by Lenz's law) and justify.