Electric Conductors and Insulators Quiz

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What is the definition of electrical conductivity?

The measure of the ability of a substance to allow the flow of an electric current

Which type of substances have high electrical conductivity?

Good conductors

Why is pure water a poor conductor of electricity?

It lacks free moving charged particles

What makes tap water, rainwater, seawater, and water from a well conduct electricity?

<p>Presence of ions from impurities</p> Signup and view all the answers

What are charge carriers in liquids generally?

<p>Ions</p> Signup and view all the answers

Why does pure water not conduct electricity effectively?

<p>It doesn't have impurities</p> Signup and view all the answers

Which materials allow the movement of charged particles and are called good conductors of electricity?

<p>Copper, iron, brass</p> Signup and view all the answers

What are materials called that do not allow the movement of charged particles and are termed as poor or bad conductors of electricity?

<p>Wood, plastic, paper</p> Signup and view all the answers

Why are insulators like rubber and plastic used in electric cabins?

<p>To insulate against electric current</p> Signup and view all the answers

What is the purpose of using insulators in the handles of tools used for electrical equipment?

<p>To prevent electric shock</p> Signup and view all the answers

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?

<p>The battery is drained out</p> Signup and view all the answers

In a working circuit setup with a battery, bulb, and wire, what does it indicate if the bulb starts glowing according to the text?

<p>The circuit is complete and everything is working fine</p> Signup and view all the answers

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