At 20°C, the carbon resistor in an electric circuit connected to a 4.0 V battery has a...
Homework Answers
R = 221 Ohms
R' = R*(1+alpha*(79-20)) = (221)*(1+(0.004041*(79-20))) = 273.6906 Ohms
I = V/R' = 4/273.6906 = 0.0146 A
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