Electric And Magnetic Fields

Question 0

Electric field

Answer 0

A region of space where a charged particle experiences a force, it goes from + to -

Question 1

Electric current

Answer 1

A flow of charge. A vector quantity, measured in amperes

Question 2

Electromagnetic induction

Answer 2

The process of inducing an e.m.f. Using a magnetic field and a changing flux linkage

Question 3

Electric field strength (E)

Answer 3

Force per unit positive charge, given by E=F/q, measured in N/C

Question 4

Electromagnetic wave

Answer 4

A self-propagating transverse wave that does not require a medium to travel through

Question 5

Faraday’s law

Answer 5

The magnitude of the induced e.m.f. is equal to the rate of change of flux linkage

Question 6

Field

Answer 6

A region in which a force operates

Question 7

Flemings left-hand rule

Answer 7

Used with electric motors and forged acting in moving charges in magnetic fields. It shows the direction of the force on a conductor carrying a current in a magnetic field. Force- thumb, field- first finger, current- middle finger. All at right angles