Asked by John - PLEASE Help!
A resitor of unknown resistance and a 35-omega resistor are connected across a 120-V emf device in such a way that an 11-A current flows. What is the value of the unknown reisistance?
Answers
Answered by
drwls
No more than 120/35 = 3.43 A could flow if the resistors were in series. Theretore I mus assume that they are in parallel and that 11-3.43 = 7.57 A flows through the unknown resistor. Use that fact and the 120 V applied voltage to get its resistance, R = V/I = 15.85 ohms
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