Answered: A so-called 7-way lamp has three…

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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Question

A so-called 7-way lamp has three 60-watt bulbs which may be turned on one or two or all three at a time, and a large bulb which may be turned to 100 watts, 200 watts or 300 watts. How many different light intensities can the lamp be set to give if the completely off position is not included? (The answer is not 7.)

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Solution-

In the given question total three 60W bulbs

- No of possibilities = 0 (OR) 1 (OR) 2(OR) 3

Total 4 possibilities are there

- Large bulb = off (or) 100W (or) 200W (or) 300W

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