A charge of 16.0 C is sent through an electric lamp when the difference of potential is 220V. What energy is expended? Determine the power dissipated by the element of an electric fire of resistance 20 ohms when a current of 20A flows through it. If the fire is on for 7 hours determine the energy used and the cost if 1 unit of electricity costs Php14/kWh.

A charge of 16.0 C is sent through an electric lamp when the difference of potential is 220V. What energy is expended? Determine the power dissipated by the element of an electric fire of resistance 20 ohms when a current of 20A flows through it. If the fire is on for 7 hours determine the energy used and the cost if 1 unit of electricity costs Php14/kWh.

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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