Electric Energy Consumption Quiz
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Questions and Answers

What instrument is used to measure the amount of electrical energy consumed in a house?

  • Electric meter (correct)
  • Voltage regulator
  • Circuit breaker
  • Power generator

    • Which of the following units is used to measure electric energy?

  • Watts
  • Amperes
  • Joules (correct)
  • Volts

    • In the formula E = P × t, what does the variable P represent?

  • Voltage applied
  • Time measured
  • Energy consumed
  • Power used (correct)

    • How can energy consumption be calculated according to the formula provided?

    <p>By multiplying power by time</p> Signup and view all the answers

    What is the time variable 't' measured in when calculating electric energy?

    <p>Seconds</p> Signup and view all the answers

    What is the formula for calculating electrical energy consumption?

    <p>E = P × t</p> Signup and view all the answers

    If a device consumes 2000 Watts for 300 seconds, what is the electrical energy consumption in Joules?

    <p>600,000 Joules</p> Signup and view all the answers

    What is the total time in seconds when using a device for 15 minutes?

    <p>900 seconds</p> Signup and view all the answers

    How many Joules of energy does a 1000 Watt device consume when used for 2 hours?

    <p>7,200,000 Joules</p> Signup and view all the answers

    What is the energy consumed by a 1500 Watt hairdryer used for 20 minutes?

    <p>1,800,000 Joules</p> Signup and view all the answers

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