Voltage Basics in Electrical Circuits
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Questions and Answers

What is the unit of measurement for voltage?

  • Ohms
  • Amps
  • Volts (correct)
  • Hertz

    • What is the symbol used to represent volts?

  • V (correct)
  • Vl
  • A
  • Vt

    • What is the range of mains voltage in most countries?

  • Between 300 and 350 V
  • Between 50 and 100 V
  • Between 220 and 240 V (correct)
  • Between 110 and 120 V

    • What is the maximum voltage often used for lamps in schools for electrical experiments?

    <p>6 V (D)</p> Signup and view all the answers

    Which component in a circuit converts electrical energy into light and thermal energy?

    <p>Lamp (C)</p> Signup and view all the answers

    What do cells, batteries, power supplies, and the mains represent in a circuit?

    <p>Sources of energy (A)</p> Signup and view all the answers

    What is the typical voltage supplied by most cells?

    <p>9 V (D)</p> Signup and view all the answers

    Which of the following components in a circuit usually has a maximum voltage rating?

    <p>Lamps (D)</p> Signup and view all the answers

    What does the term 'mains' refer to in the context of electrical supply?

    <p>The electrical supply from a power station or generator (D)</p> Signup and view all the answers

    What is the voltage range observed for the mains in most countries?

    <p>220 - 240 V (B)</p> Signup and view all the answers

    How does voltage relate to the energy change by components in a circuit?

    <p>Voltage is linked to the energy change by components (A)</p> Signup and view all the answers

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