Conductors and Insulators

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Conductors and Insulators: Overview

This Topic covers sub-topics such as Semiconductors and Free Electrons

Important Questions on Conductors and Insulators

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What does the conduction of electron depends upon?

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What does semiconductor mean? Give examples of a semiconductor.

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Metals are good conductors due to the presence of free electrons.

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In a semiconductor 

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Electric conduction in a semiconductor takes place due to

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What is the relationship between resistance and conductivity?

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What is a practical application of insulators?

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Which of the following is a feature of insulators?

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Why do conductors heat up when current flows through them?

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What distinguishes a conductor from an insulator?

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Which material is used as a conductor in overhead power lines?

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What happens when an insulator is exposed to high voltage?

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Which of the following is not an insulator?

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What is the primary function of an insulator in circuits?

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Why is copper commonly used in electrical wiring?

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Which of the following is a poor conductor of electricity?

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What property makes rubber a good insulator?

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Why are metals better conductors than non-metals?

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What determines the conductivity of a material?

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Which of the following is an application of conductors?