Magnetic field Flashcards
1
Q
Define Magnetic field
A
A region in which magnetic materials feel a force
2
Q
What is magnetic flux?
A
It is defined as the magnetic flux density (B) * area (A) (Tm^2)
3
Q
What is the Faraday’s law?
A
The induced emf in a circuit is equal to the rate of change of flux linkage in the circuit
4
Q
What is the Lenz’s law
A
The direction of any induced current will always be to set up magnetic fields which oppose the magnetic fields inducing it
5
Q
What is the equation for magnetic field strength
A
F = BIL / F = NBA
