A school uses two 3 kW fires for an average of 20 hours each per week, and six 150W lights for 30 hours each per week. If the cost of electricity is 14.25 p per unit, determine the weekly cost of electricity to the school.

A school uses two 3 kW fires for an average of 20 hours each per week, and six 150W lights for 30 hours each per week. If the cost of electricity is 14.25 p per unit, determine the weekly cost of electricity to the school.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

A school uses two 3 kW fires for an average of 20 hours
each per week, and six 150W lights for 30 hours each per
week. If the cost of electricity is 14.25 p per unit, determine
the weekly cost of electricity to the school.

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