A 42 Ω resistor and a 20 Ω resistor are connected in parallel, and the combination is connected across a 240 V dc line. (a) What is the resistance of the parallel combination? (b) What is the total current through the parallel combination? (c) What is the current through each resistor?

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter28: Direct-current Circuits
Section: Chapter Questions
Problem 28.9OQ: When resistors with different resistances are connected in parallel, which of the following must be...
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A 42 Ω resistor and a 20 Ω resistor are connected in parallel, and the combination is connected across a 240 V dc line. (a) What is the resistance of the parallel combination? (b) What is the total current through the parallel combination? (c) What is the current through each resistor?

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