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Questions and Answers
What is the definition of electrical conductivity?
What is the definition of electrical conductivity?
- The measure of the ability of a substance to allow the flow of an electric current (correct)
- The measure of the brightness of a light bulb when connected to a substance
- The measure of the resistance of a substance to electricity
- The measure of the ability of water to glow with electricity
Which type of substances have high electrical conductivity?
Which type of substances have high electrical conductivity?
- Good conductors (correct)
- Liquids
- Insulators
- Metals
Why is pure water a poor conductor of electricity?
Why is pure water a poor conductor of electricity?
- It forms enough ions to conduct electricity
- It is too dense
- It lacks free moving charged particles (correct)
- It contains ions
What makes tap water, rainwater, seawater, and water from a well conduct electricity?
What makes tap water, rainwater, seawater, and water from a well conduct electricity?
What are charge carriers in liquids generally?
What are charge carriers in liquids generally?
Why does pure water not conduct electricity effectively?
Why does pure water not conduct electricity effectively?
Which materials allow the movement of charged particles and are called good conductors of electricity?
Which materials allow the movement of charged particles and are called good conductors of electricity?
What are materials called that do not allow the movement of charged particles and are termed as poor or bad conductors of electricity?
What are materials called that do not allow the movement of charged particles and are termed as poor or bad conductors of electricity?
Why are insulators like rubber and plastic used in electric cabins?
Why are insulators like rubber and plastic used in electric cabins?
What is the purpose of using insulators in the handles of tools used for electrical equipment?
What is the purpose of using insulators in the handles of tools used for electrical equipment?
In an electric circuit setup with a battery, bulb, and wire, if the bulb does not glow, what are the possible reasons according to the text?
In an electric circuit setup with a battery, bulb, and wire, if the bulb does not glow, what are the possible reasons according to the text?
In a working circuit setup with a battery, bulb, and wire, what does it indicate if the bulb starts glowing according to the text?
In a working circuit setup with a battery, bulb, and wire, what does it indicate if the bulb starts glowing according to the text?
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