Physics

Three resistors of value 1.0 , 2.0 and 4.0 are connected in a parallel circuit with a 6.0 V battery.
a) What is the total equivalent resistance?
b) What is the across each resistor?
c) The power delivered to the 4.0 resistor?

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  1. 1/Req = 1/1 + 1/2 + 1/4

    1/Req = 4/4 + 2/4 + 1/4 = 7/4
    so
    Req = 4/7

    The voltage is the same across all elements in parallel

    i for the 4 ohm = 6/4 = 1.5 amps
    P = i V or i^2 R = 1.5 * 6 or 2.25 * 4
    = 9 watts

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    posted by Damon

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