Electromagnetism Flashcards
1
Q
Define a magnetic field.
A
A region of space in which a magnetic material, a current carrying conductor or a moving charge located in it may experience a force.
2
Q
Define magnetic flux density.
A
The magnetic flux density is defined as force per unit length per unit current along a long straight current-carrying conductor placed perpendicular to a magnetic field.
3
Q
What is the formula of the magnetic force on a current carrying conductor?
A
F = BIL sin θ,
where θ is the angle subtended by the parallel component of current and the B field.
4
Q
What is the formula of the magnetic force on a moving charge?
A
F = Bqv sin θ,
where θ is the angle subtended by the parallel component of velocity and the B field.
