A "100-W" light bulb is designed to operate from 220-V lines. What is its operating resistance and what current does it draw? ) If the line voltage drops to 120 V, what power does the light-bulb take?
A "100-W" light bulb is designed to operate from 220-V lines. What is its operating resistance and what current does it draw? ) If the line voltage drops to 120 V, what power does the light-bulb take?
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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#### Problem Statement
A "100-W" light bulb is designed to operate from 220-V lines.
**a) What is its operating resistance and what current does it draw?**
**b) If the line voltage drops to 120 V, what power does the light bulb take?**
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