A 220v 2 hp motor has an efficiency of 80%, If power costs 3.00 per kh hr for the first 50 kw hr, 2.90 for the second 50 kwhr, 2.80 for the third kw hr and so on until a minimum of 2.00 per kwhr is reached, how much does it cost to run this motor continuously for 7 days.

A 220v 2 hp motor has an efficiency of 80%, If power costs 3.00 per kh hr for the first 50 kw hr, 2.90 for the second 50 kwhr, 2.80 for the third kw hr and so on until a minimum of 2.00 per kwhr is reached, how much does it cost to run this motor continuously for 7 days.

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

Chapter23: Faraday’s Law And Inductance

Section23.2: Motional Emf

Problem 23.4QQ

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.

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