5
Question Question 5
Describe a simple experiment to prove that – a copper wire conducts electricity, but a piece of coal does not.
Experiment to prove that a copper wire conducts electricity.
Procedure — Join a wire with the battery, copper and bulb
Observation — The bulb glows when current passes through the circuit.
Conclusion — Copper conducts electricity, hence it is a good conductor of electricity.
Experiment to prove that coal does not conduct electricity.
Procedure — Join a wire with battery, coal and bulb
Observation — The bulb does not glow.
Conclusion — Coal does not conduct electricity hence, it is a bad conductor of electricity.