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Find the power dissipated in each of these extension cords: (a) an extension cord having a $0.0600-\Omega$ resistance and through which 5.00 A is flowing; (b) a cheaper cord utilizing thinner wire and with a resistance of 0.300$\Omega .$

(a) $P_{1}=1.50 \mathrm{W}$(b) $P_{2}=7.50 \mathrm{W}$

Physics 102 Electricity and Magnetism

Chapter 20

Electric Current, Resistance, and Ohm's Law

Current, Resistance, and Electromotive Force

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Lectures

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In physics, a current is a…

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So for these problem, we have to kind of to kind of courts. And for the 1st 1 the resistance is the point. 06 homes and the current. It's five years. So the power dissipated, dissipated in the choruses p equal. I squared Times are right. So this gives you 1.5 waltz. Okay. And for the 2nd 1 if the resistance becomes 10.3 homes and the curry is the same five m peers, so we can see the power equal I squared times are this gives you 7.5 volts. OK, so apparently this way use that thing. That why're the power dissipated in the courts? He's actually ah, much larger than, uh than this one, All right.

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