Circuit Questions

9 Questions  I  By Hrobinson
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Electronics Quizzes & Trivia
Quiz designed for Mrs. Robinson's students who are attempting the 3 credit Unit Standard in Electricity.

  
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  • 1. 
    A series circuit is set up and contains the following: a battery which states '4V' on its side; and two identical lamps.Which statement below is true for this circuit?
    • A. 

      If one lamp breaks, the other will shine more brightly.

    • B. 

      If a voltmeter shows the voltage across the first lamp to be 3 volts, we can assume the voltage across the second lamp will be 1 volt.

    • C. 

      The voltage across each lamp will be 4V, just like the voltage across the battery.


  • 2. 
    A parallel circuit is set up which contains the following: a variable power pack which currently reads '12V'; two lamps in parallel.Which statement below is NOT true for this circuit?
    • A. 

      If we attach voltmeters across the two lamps, both voltmeters will read '12V'.

    • B. 

      If we attach ammeters across the two lamps, both meters will will read '12V'.

    • C. 

      If we attach another lamp and voltmeter in parallel, the third voltmeter will read '12V' too.


  • 3. 
    REMEMBER THE CIRCUIT FROM QUESTION 2..."A parallel circuit is set up which contains the following: a variable power pack which [in question 2 read] '12V'; two lamps in parallel."If we turn the variable power pack so that it reads '6V', and then attach voltmeters across each lamp, what will the voltmeters read?
    • A. 

      The first voltmeter will read 6V; the second will read 3V

    • B. 

      The first voltmeter will read 3V; the second will read 6V

    • C. 

      Both voltmeters will read 3V

    • D. 

      Both voltmeters will read 6V


  • 4. 
    In a SERIES CIRCUIT...
    • A. 

      The CURRENT (Amps) will be the same at any point in the circuit

    • B. 

      The CURRENT will be higher at the end of the circuit

    • C. 

      The CURRENT will be lower at the end of the circuit


  • 5. 
    Which statement is NOT true in a PARALLEL CIRCUIT...
    • A. 

      The number of Amps shown by an ammeter placed right after the power source would be the same as the Amps in each part of the circuit

    • B. 

      The Amps in each parallel wire of the circuit would be equal

    • C. 

      The Amps in each parallel wire of the circuit would add up to the Amps shown by an ammeter put in directly after the power source


  • 6. 
    A SERIES CIRCUIT is set up with the following: a cell with an ammeter right next to it (A1); three lamps, each with an ammeter beside them in series - these are given the names A2, A3 and A4.Which statement is TRUE....
    • A. 

      If A1 reads 6A, A2 and A3 and A4 will each read 2A

    • B. 

      If A1 reads 6A, A2 will read 3A, A3 will read 2A, and A4 will read 1A

    • C. 

      If A1 reads 6A, all the other ammeters will read 6A as well


  • 7. 
    A PARALLEL CIRCUIT is set up with the following: a cell with an ammeter right next to it (A1); three lamps in parallel, each with an ammeter right beside them - these are given the names A2, A3 and A4. Which statement is TRUE....
    • A. 

      If A1 reads 6A, the readings on the other three ammeters will add up to 6A; for example, they could read A2=2A, A3 = 2A, A4 = 2A

    • B. 

      If A1 reads 8A, the reading on A2 will be 8A and the reading on each of the other two ammeters will be 4A

    • C. 

      If A1 reads 6A, the readings on the other three ammeters will add up to 6A; for example, they could read A1=2A, A2 = 2A, A3 = 2A


  • 8. 
    Ammeters should always be connected in __________.

  • 9. 
    Voltmeters should always be connected in parallel across a power source, lamp or other c____________.

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