8.2 Moving Charges

Question 1

State 2 reasons for a large current

Answer 1

1. A greater number of electrons moving past a given point each point each second
2. The same number of electrons moving faster through the metal

Question 2

Define conventional current

Answer 2

A current from a positive terminal towards a negative one

Question 3

Define electrolytes

Answer 3

Liquids that can carry an electrical current as it contains dissolved ions

Question 4

Define ionic solution and give an example

Answer 4

A solution containing ions which are atoms that have gained or lost electrons to gain a positive or negative charge. An example is sodium chloride

Question 5

State the use of a ammeter

Answer 5

An instrument used to measure the electric current at any point within a circuit