The human body (especially when dry) is a poor conductor of electricity, yet we get an electric shock because it does conduct some electricity. Which of these is a similar example when a poor conductor allows electricity to pass through it?
A)During a thunderstorm, lightning strikes when electric charge passes through the air, which is normally a poor conductor.
B)Electricity passes through the copper wires inside the motor of a ceiling fan as copper is a good conductor of electricity.
C)Electricity passes through the metallic filament in a bulb when it glows, though the filament is normally a poor conductor.
D)Electricity passes through the walls of a building when a light is turned on, though bricks are normally poor conductors.
Answers
Explanation:
The human body (especially when dry) is a poor conductor of electricity, yet we get an electric shock because it does conduct some electricity. Which of these is a similar example when a poor conductor allows electricity to pass through it?
A)During a thunderstorm, lightning strikes when electric charge passes through the air, which is normally a poor conductor.
B)Electricity passes through the copper wires inside the motor of a ceiling fan as copper is a good conductor of electricity.
C)Electricity passes through the metallic filament in a bulb when it glows, though the filament is normally a poor conductor.
D)Electricity passes through the walls of a building when a light is turned on, though bricks are normally poor conductors.
Answer:
B). electricity passes through the copper wire inside the motor of a ceiling fan as copper is a good conductor of electricity.