Conductors

Physics: Cambridge International GCSE Supplement, topic 4.2.7

Electrical Conductors and Insulators

Some materials conduct electricity and others do not.

Electrical conductors

Electrical conductors

  • An electrical conductor is material that allows electric currents (flow of electric charges) to pass through it.
  • All metals are electrical conductors.
Electrical insulators

Electrical insulators

  • An electrical insulator is a material that have high resistance to a flow of current.
  • Plastic and glass are electrical insulators.

Test yourself on Conductors

  • Which of these is not a conductor?

  • Which of these is not an electrical insulator?

  • Which of these statements about conductors and insulators are true?

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