DC Circuits

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| By Prodale270
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Prodale270
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Quizzes Created: 1 | Total Attempts: 2,169
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  • 1/5 Questions

    There is a circuit with an emf source of 6.0V connected to a lamp and a current flow of 2.0A.Assuming that the wires connecting the whole circuit is resistance free, what is the resistence of the lamp?

    • 0Ω
    • 2.0Ω
    • 3.0Ω
    • 6.0Ω
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About This Quiz

A quiz about dc circuits :D
just 5 Qns to test your understanding :D
pictures are all drawn by myself on paint :D

DC Circuits - Quiz

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  • 2. 
    What is the total current of the circuit? - ProProfs

    What is the total current of the circuit?

    • 12.0A

    • 6.0A

    • 11.0A

    • 0A

    Correct Answer
    A. 12.0A
    Explanation
    I=VR
    Total current= total of 3 currents for each branch of a parallel circuit
    total current= 12/2 + 12/3 +12/6
    = 12.0A

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  • 3. 
    What is the effective resistance of the circuit? - ProProfs

    What is the effective resistance of the circuit?

    • 12Ω

    • (11/3 )Ω

    • 1Ω

    • 0Ω

    Correct Answer
    A. 1Ω
    Explanation
    1/total resistance (parallel)= 1/r + 1/r + 1/r (r being the respective resistance)
    in this case
    1/effective resistance= 1/6 + 1/3 + 1/2
    effective resistance = 1Ω

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  • 4. 
    What is the maximum possible voltage and current through the circuit? - ProProfs

    What is the maximum possible voltage and current through the circuit?

    • 6.0V,0.24A

    • 0V,0.24A

    • 0V,0.48A

    • 6.0V,0.48A

    Correct Answer
    A. 6.0V,0.24A
    Explanation
    I=V/R
    =6/25
    =0.24A
    v=IR
    =0.24X25
    =6.0V

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  • 5. 
    What is the P.D of each resistor? - ProProfs

    What is the P.D of each resistor?

    • 24A,48A

    • 24V,48V

    • 4V,8V

    • 4A,8A

    Correct Answer
    A. 4V,8V
    Explanation
    P.d(1)=(24/[24+48])12
    =4V

    P.d(2)=(48/[24+48])12
    =8V

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  • Current Version
  • Mar 03, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 06, 2010
    Quiz Created by
    Prodale270
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