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Current and Power in a Resistor

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A 60.0 ohm resistor is connected in parallel with a 115.0 ohm resistor. This parallel group is connected in series with a 15.0hm resistor. The total combination is connected across a 15.0-V battery. Find the current and power in the 115 ohm resistor.

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The solution is given in a step-by-step equational process.

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The total resistance of the network = 15 series + (60 parallel 115)
R = 15 + 60*115/175 = ...

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