Calculation Of Electrical Energy! Trivia Questions Quiz

5 Questions | Total Attempts: 65

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Calculation Of Electrical Energy! Trivia Questions Quiz

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Questions and Answers
  • 1. 
    How much charge flows through an appliance rated 240V, 60W when it is used for 5 mins?
    • A. 

      75.0 C

    • B. 

      0.25 C

    • C. 

      40.0 C

    • D. 

      1.25 C

  • 2. 
    The e.m.f of a cell is 1.5V. What energy is dissipated by the cell if it drives 0.4C of charge round the circuit?
    • A. 

      0.6 J

    • B. 

      0.6 W

    • C. 

      3.75 J

    • D. 

      3.75 W

  • 3. 
    What is the e.m.f of a cell if it uses 4.2 joules of energy as it pushes 6 coulombs of charge around a circuit?
    • A. 

      0.7 V

    • B. 

      25.2 V

    • C. 

      1.43 V

    • D. 

      4.8 V

  • 4. 
    What is electrical energy converted as heat by a 240 V light bulb that is switched on for 300 seconds? A current of 5A is moving through the bulb.
    • A. 

      360000 J

    • B. 

      72000 J

    • C. 

      1500 J

    • D. 

      14400 J

  • 5. 
    What is the power of a light bulb if a 240 V light bulb is switched on for 2 minutes? A current of 3 A is moving through the bulb.
    • A. 

      720 Watts

    • B. 

      1440 Watts

    • C. 

      86400 Watts

    • D. 

      840 Watts