SOLUTION: Can you pls help me solve this word problem. "The power (in watts) lost in a resistor (in the form of heat) is directly proportional to the square of the current(in amperes) passin

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: Can you pls help me solve this word problem. "The power (in watts) lost in a resistor (in the form of heat) is directly proportional to the square of the current(in amperes) passin      Log On

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Question 1058627: Can you pls help me solve this word problem. "The power (in watts) lost in a resistor (in the form of heat) is directly proportional to the square of the current(in amperes) passing through it. The constant of proportionally is the resistance (in ohms). What power is lost in a 5-ohm resistor carrying a 3-ampere current?" Please show me how and why you got the answer. Thank you

Answer by solve_for_x(190) About Me  (Show Source):
You can put this solution on YOUR website!
Power loss = R * I^2

With R = 5 ohms, and I = 3 amps, the power loss is:

Power loss = (5 ohms)(3 amps)^2 = 45 W