Chapter 11.1

Question 1

Magnetic flux definition and formula

Answer 1

The magnetic field strength normal to a surface multiplied by the area of that surface
Φ = BAcos(θ)

Question 2

Flux linkage formula

Answer 2

Φ = NBAcos(θ)

Question 3

Faraday’s law definition and formula

Answer 3

The induced emf is equal to the negative rate of change of magnetic flux linkage

ε = -(N∆Φ)/∆t

Question 4

Lenz’s Law

Answer 4

The induced emf in a loop will be in such a direction as to oppose the change in the magnetic flux that created the current