magnetism

Question 1

what is the motor effect

Question 2

how is magnetic field produced with wire

Answer 2

a magnetic field is produced when a current moves through a wire.

Answer 3

arrow shows direction of current ( magnetic field around wire)
when the wire is placed in a magnetic field the magnetic field of the wire interacts with the magnetic field between the magnets. This means the wire will experience a force in the upwards direction causing wire to move upwards.

Answer 4

can calculate size of magnetic force by F= magnetic flux density x current x length. this applies to a wire which is at right angles to the magnetic field. magnetic flux density is measure of the strength of magnetic field.

Question 5

what is magnetic flux measured in

Answer 5

Tesla (T)

Question 6

what is current measure in

Answer 6

amperes (A)

Question 7

what is length measured in

Answer 7

meters (m)

Question 8

what is lemmings left hand rule

Answer 8

place thumb , and 2 next to fingers all at right angles.

thuMb - motion - direction

First finger - field

seCond finger - current

Answer 9

if the conductor is parallel to magnetic field it will not experience a force - has to be at right angles to magnetic field.