P7 - Magnetism And Electromagnetism

Question 1

permanent magnets

Answer 1

produce their own magnetic field

Question 2

Induced magnets

Answer 2

magnetic materials that turn into a magnet when they are put into a magnetic field

Question 3

Right hand thumb rule

Answer 3

Point your thumb in the direction of the current and curl your fingers. The direction of your fingers is the direction of the field.

Question 4

Force equation

Answer 4

F = BI1
Force = Magnetic flux density x current x length

Question 5

Left hand rule

Answer 5

point your first finger in the direction of the magnetic field
point your second finger in the direction of the current
point your thumb in the direction of the force (motion)