16 EM Flashcards
1
Q
Formula for electromagnetic force on a long current carrying conductor
A
F=B I L sin θ
2
Q
Magnetic field definition
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
3
Q
Magnetic flux density
A
Magnetic flux density at a given point in a magnetic field is defined as the force per unit length exerted on a long straight conductor carrying a unit current that is placed perpendicular to the magnetic field
4
Q
How does core make solenoid stronger
A
By inserting a ferrous iron core into a solenoid, the field lines are concentrated thus strengthening the field
5
Q
Formula for Force on a moving charge
A
F=Bqv sin θ
