A single-turn conducting loop experiences a magnetic flux that changes from Φ1 to Φ2 during a time interval Δt. Which of the following expressions gives the magnitude of the emf induced in the loop as a result of this change?
a) ΔtΦ2−Φ1
b) ΔtΦ1+Φ2
c) ΔtΦ2−Φ1
d) ΔtΦ2