A power line with a resistance of 2 ohms has a current of 80 A in it.The power dissipated in the line is
A)40 W.
B)160 W.
C)320 W.
D)12,800 W.
E)none of these

Question

Quizplus · Accepted Answer

The power dissipated in the line can be calculated using the formula:

Power = (Current)^2 x Resistance

Substituting the given values, we get:

Power = (80)^2 x 2
Power = 10,240 W

Therefore, the power dissipated in the line is 10,240 W, which is closest to option D (12,800 W).

A Power Line with a Resistance of 2 Ohms Has