EM + EMI

Question 1

magnetic flux density B

Answer 1

the magnetic force per unit length acting on a current-carrying conductor placed at a right angle to the magnetic field

Question 1

magnetic field

for magnet + electromagnet

Answer 1

a region in which a force acts on a magnet or moving charge in a current-carrying conductor

Question 2

magnetic flux Φ

Answer 2

the product of an area and the component of the magnetic flux density perpendicular to that area
(BAcostheta)

Question 3

magnetic flux linkage

Answer 3

product of the magnetic flux passing through the coil and the number of turns on the coil

Question 4

Faraday’s law

Answer 4

the magnitude of induced emf in a conductor is directly proportional to the rate of change of magnetic flux linkage/rate of flux cutting

Question 5

Lenz’s law

Answer 5

the direction of induced emf is such that it produces effects that opposes the change that causes it