Explain the term electric current? For a light bulb to burn there must be: a) a source of , b) metal wires to , the electricity throughout the circuit. State the difference between a conductor and an insulator. What is the function of a circuit diagram?

Here are the answers to Question 1:

1. Electric current is the rate of flow of electric charge, typically electrons, through a conductor.

2. For a light bulb to burn there must be: a) a source of energy such as a battery or power supply. b) metal wires to conduct the electricity throughout the circuit.

3. A conductor is a material that allows electric charge to flow easily through it, due to the presence of free electrons. An insulator is a material that resists the flow of electric charge, as its electrons are tightly bound and cannot move freely.

4. The function of a circuit diagram is to provide a simplified, standardized visual representation of an electrical circuit, showing how components are connected and allowing for easy understanding, design, and troubleshooting of the circuit.