Electric Coffee Maker
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US $8.99
help with physics please?
Before going to work each morning, gene runs his 18-Ω toaster, 11-Ω electric frying pan, and 14-Ω electric coffee maker, all at the same time. The three are connected in parallel across a 120-V line. a) What is the current through each appliance? B) If a household circuit could carry a maximum of 15 A, would Gene be able to run all of these appliances at the same time?
thank you!
The current for each appliance is V/R So toaster 120/18 = 6.67A
Frying pan = 120/11 = 10.9 A
Coffee 120/14 = 8.57A
Therefore the total current is 6.67+10.9+8.57 = 26.1A. Obviously Gene is out of luck in running all of these at the same time as the total current exceeds the circuit limit of 15A. He could not run any two of these together either.
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