Class 12 Physics
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Questions and Answers

What is the SI unit of electric current?

  • Ampere (correct)
  • Ohm
  • Coulomb
  • Volt

    • Which of the following materials has the highest electrical conductivity?

  • Rubber
  • Wood
  • Copper (correct)
  • Glass

    • What does a resistor do in an electric circuit?

  • Stores electrical energy
  • Converts electrical energy into heat
  • Increases the flow of current
  • Opposes the flow of current (correct)

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