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Ohm's law and Kirchoff — What am I missing?
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[QUOTE="berkeman, post: 6292996, member: 8921"] Correct, that is the key. The voltage source is putting 45V across the 30 Ohm resistor, and it is also putting 45V across the series combination of the other 3 resistors. Work out the current through each of those two loops independently, since they are in parallel. It is the voltage source's job to source enough current to be able to hold that 45V across those two parallel strings of resistors. Finding the current through the 30 Ohm resistor with the 45V across it is easy, right? Then find the current in the other loop that is going through the series combination of those 3 resistors, and then you can figure out the individual voltage drops across each of the three resistors because you know the current through them. Show us those calcs so we can be sure you are understanding things now. :smile: [/QUOTE]
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Ohm's law and Kirchoff — What am I missing?
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