The wiring in a house must be thick enough so it does not become so hot as to start a fire. What diameter (in m) must a copper wire be if it is to carry a maximum current of 35 A and produce no more than 1.5 W of heat per meter of length? p-1.68x10 2-m Option5 33x103 Option1 Option2 55x103 Option3 Option4 2.1x103 22x103 4.2x10

The wiring in a house must be thick enough so it does not become so hot as to start a fire. What diameter (in m) must a copper wire be if it is to carry a maximum current of 35 A and produce no more than 1.5 W of heat per meter of length? p-1.68x10 2-m Option5 33x103 Option1 Option2 55x103 Option3 Option4 2.1x103 22x103 4.2x10

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 49P: Taking R = 1.00 k and = 250 V in Figure P21.49, determine the direction and magnitude of the...

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Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent?
Taking R = 1.00 k and = 250 V in Figure P21.49, determine the direction and magnitude of the current in the horizontal wire between a and e. Figure P21.49
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