what becomes of the voltage if we use 2 resistors of 4w in parallel?

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  • D g
    Lv 7
    4 weeks ago

    The 4 Watts is the rating not the wattage going through it 

    The voltage across the parallel circuit is the same as the source across it both resistors get the same voltage 

  • oubaas
    Lv 7
    1 month ago

    V = √P/r 

    you need to know r , otherwise u cant say the value of V 

  • 1 month ago

    For the formula of power P=(V^2)/R, the power is 4 Watt each. The voltage can be found if you know the resistance.

  • 1 month ago

    Too lazy to even post the full question when cheating with Yahoo Answers. What becomes of you? FAIL.

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  • garry
    Lv 5
    1 month ago

    what a dumb question , its the ohm that matter , not if there 4 watts ..

  • Zirp
    Lv 7
    1 month ago

    it will be the same as when you use a 2 ohm resistor

  • 1 month ago

    If you use 2 resistors in parallel the voltage across them is the same.

    If they are the same resistance then the currents are equal and they dissipate the same power. If the resistances are different then the currents and power dissipation's will be different but the voltage's will still  be the same.

  • 1 month ago

    you are missing part of the question, this makes no sense. 

    wattage RATING becomes 8 watts, but actual watts dissipated depends on applied voltage.

    Voltage is whatever you apply.

  • 1 month ago

    Assume you mean 2 resistors of 4Ω in parallel. 4*4/(4+4) = 1/(1/4+1/4) = 2Ω

    Just like 3 9Ω's in parallel = 1/(1/9 + 1/9 + 1/9) = 1/(3/9) = 9/3 = 3Ω

  • Mark
    Lv 7
    1 month ago

    Use Ohm's Law for the answer.

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