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How do I find the current in resistors of a series-parallel circuit?
How much current passes through each lamp in Fig. P35? Lamp 1 has a resistance of 3.0 ohms , Lamp 2 has a resistance of 5.0 ohms and Lamp 3 has a resistance of 7.0 ohms . The battery has negligible internal resistance.
http://www.webassign.net/hecht/18-P35alt.gif
Please show work
To find total current, find equivalent resistance. Req = 3*5/(3+5) + 7 = 8.875 ohms
Current through lamp 3 - 6V / 8.875ohms = .68 A
Current through lamp 2 - 3/(3+5) * .68A = .255 A
Current through lamp 1 - 5/(3+5) * .68A = .425 A
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US $725.00

















































































