Charge

Question 1

Electric current

Answer 1

The rate of flow of charge

Question 2

Conventional current

Answer 2

Current flows from a point of high potential to a point of low potential. This is normally from the positive terminal to the negative terminal

Question 3

Electron flow

Answer 3

In metals, as electrons are negatively charged, electron flow is from the negative (-) terminal to the positive (+) terminal

Question 4

Ampere

Answer 4

1A is equal to 1C of charge passing a point in 1s

Question 5

Coulomb

Answer 5

The amount of charge that passes in 1 second when the current is 1 ampere

Question 6

Conservation of Charge

Answer 6

Electric charge can neither be created nor destroyed – the total charge in any interaction must be the same before and after the interaction

Question 7

Kirchhoff’s First Law

Answer 7

At any point in an electrical circuit, the sum of currents entering a junction is equal to the sum of currents leaving it