A man wishes to vacuum his car with a canister vacuum cleaner marked 550 W at 120 V. The car is parked far from the building so he uses an extension cord 15.0 m long to plug the cleaner into a120-V source. Assume that the cleaner has constant resistance.(a) If the resistance of each of the two conductors of the extension cord is 0.850 , what is the actual power delivered to the cleaner?W(b) If, instead, the power is to be at least 540 W, what must be the diameter of each of the two identical copper conductors in the cord the young man buys?mm(c) Repeat part (b) if the power is to be at least 547 W. [Suggestion: A symbolic solution can simplify the calculations.]mm

It is given that, the vacuum cleaner has a mark for the power is P=550 W, and for the voltage is…

A man wishes to vacuum his car with a canister vacuum cleaner marked 550 W at 120 V. The car is parked far from the building so he uses an extension cord 15.0 m long to plug the cleaner into a 120-V source. Assume that the cleaner has constant resistance. (a) If the resistance of each of the two conductors of the extension cord is 0.850 2, what is the actual power delivered to the cleaner? W (b) If, instead, the power is to be at least 540 W, what must be the diameter of each of the two identical copper conductors in the cord the young man buys? mm (c) Repeat part (b) if the power is to be at least 547 W. [Suggestion: A symbolic solution can simplify the calculations.]

A man wishes to vacuum his car with a canister vacuum cleaner marked 550 W at 120 V. The car is parked far from the building so he uses an extension cord 15.0 m long to plug the cleaner into a 120-V source. Assume that the cleaner has constant resistance. (a) If the resistance of each of the two conductors of the extension cord is 0.850 2, what is the actual power delivered to the cleaner? W (b) If, instead, the power is to be at least 540 W, what must be the diameter of each of the two identical copper conductors in the cord the young man buys? mm (c) Repeat part (b) if the power is to be at least 547 W. [Suggestion: A symbolic solution can simplify the calculations.]

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

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Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

A man wishes to vacuum his car with a canister vacuum cleaner marked 550 W at 120 V. The car is parked far from the building so he uses an extension cord 15.0 m long to plug the cleaner into a
120-V source. Assume that the cleaner has constant resistance.
(a) If the resistance of each of the two conductors of the extension cord is 0.850 , what is the actual power delivered to the cleaner?
W
(b) If, instead, the power is to be at least 540 W, what must be the diameter of each of the two identical copper conductors in the cord the young man buys?
mm
(c) Repeat part (b) if the power is to be at least 547 W. [Suggestion: A symbolic solution can simplify the calculations.]
mm

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