The power dissipated in each extension is calculated from:
, where i is the current and R the resistance.
From the boxed equation above:
P = (5.00)2(0.0600)
Find the power dissipated in each of these extension cords:(a) an extension cord having a 0.0600 - Ω resistance and through which 5.00 A is flowing; (b) a cheaper cord utilizing thinner wire and with a resistance of 0.300 Ω
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Power in Circuits concept. You can view video lessons to learn Power in Circuits. Or if you need more Power in Circuits practice, you can also practice Power in Circuits practice problems.