Current of Electricity

Question 1

Electric Current

Answer 1

Electric current is defined as the rate of flow of charge

Question 2

Coulomb

Answer 2

1C is defined as the amount of electrical charge that passes through a point in 1s when there is a constant current of 1A

Question 3

Potential Difference

Answer 3

The potential difference between two points in a circuit is defined as the amount of electrical energy per unit charge that is converted to other forms of energy when charge passes from one point to the other

Question 4

Volt

Answer 4

1V is the potential difference between two points in a circuit when 1J of electrical energy is converted to other forms of energy as 1C of charge passes from one point to another

Question 5

Electromotive Force

Answer 5

The electromotive force (e.m.f.) of a source is defined as the amount of electrical energy that is converted from other forms of energy when the source drives a unit charge around a complete circuit

Question 6

Resistance

Answer 6

The resistance of a conductor is defined as the ratio of the potential difference across it to the current flowing through it

Question 7

Ohm

Answer 7

1Ω is the resistance of a conductor when a potential difference of 1V across it causes a current of 1A to flow through it

Question 8

Ohm’s Law

Answer 8

Ohm’s law states that the potential difference across a conductor is proportional to the electric current passing through it, provided that its temperature remains constant