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College Physics

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Two 9.1 ohms resistors are connected in parallel, as are two 5.9 ohms resistors. These two combinations are then connected in series in a circuit with a 20 V battery.
What is the current in each resistor?
I9.1, I5.9 = A
What is the voltage across each resistor?
V9.1,V5.9 = V

  • College Physics -

    First, what is the equivalent resistance in the circuit:
    R= 9.1/2+5.9/2=4.55+2.99=7.54 ohms
    What is the circuit current? 20/7.54

    what is the current in each resistor (half the circuit current)= 10/7.54

    Now figure voltage across each resistor.
    V=I*resistanceof resistor

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