Electromagnetic Induction Flashcards
1
Q
Lenz’s Law:
A
The direction of any induced current is in a direction that opposes the flux change that causes it.
2
Q
Faraday’s Law of EM Induction:
A
The magnitude of the induced e.m.f. is equal to the rate of change of magnetic flux linkage.
3
Q
Define Magnetic Flux
A
Magnetic Flux = magnetic flux density times area at right angles to magnetic field.
4
Q
Define the weber
A
1 Wb is the magnetic flux when a magnetic field of 1T passes at right angles through an area of one metre squared.
5
Q
Define magnetic flux linkage
A
Magnetic flux times the number of coils.
