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5 Written questions

5 Matching questions

  1. electric current
  2. electrical conductor
  3. resistance
  4. integrated circuit
  5. diode
  1. a a thin slice of silicon that contains many solid-state components
  2. b a material through which electric charge can flow easily
  3. c the continuous flow of electricity
  4. d a solid-state component that combines an n-type and p-type semiconductor
  5. e opposition to the flow of charges in a material

5 Multiple choice questions

  1. another name for potential difference
  2. a material through which electric charge cannot flow easily
  3. a material that has almost zero resistance when it is cooled to low temperatures
  4. information that is sent as patterns in the controlled flow of electrons through a circuit
  5. the transfer of excess charge through a conductor to Earth

5 True/False questions

  1. law of conservation of chargethe total charge in an isolated system is constant


  2. electric chargethis is a property that allows particles with like charges to repel and opposite charges to attract


  3. digital signalis a smoothly varying signal produced by continuously changing the voltage or current in a circuit


  4. circuit breakeris a switch that opens when current for the circuit is too high


  5. semiconductora crystalline solid that conducts current only under certain conditions


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