COE + DC

Question 1

current (I)

Answer 1

rate of flow of positive charges

Question 2

electromotive force (emf)

Answer 2

amount of energy converted per unit charge from other forms of energy to electrical energy when the source drives a charge round a complete circuit

Question 3

potential difference (V)

Answer 3

amount of energy per unit charge converted from electrical energy to other forms of energy when the charge passes through an electrical component

Question 4

resistance (R)

Answer 4

ratio of the potential difference across a component to the current flowing through it