In a string of holiday lights, 50 lights—with a resistance of 13.5 Ω each—are connected in series. (a) If the string oflights is plugged into a 120.0-V outlet, what current flows throughit? (b) Three of the lights burn out and activate their shunt resistors, effectively reducing the resistance of each one to 0.15 Ω. Howmuch current now flows through the entire string of lights?
In a string of holiday lights, 50 lights—with a resistance of 13.5 Ω each—are connected in series. (a) If the string oflights is plugged into a 120.0-V outlet, what current flows throughit? (b) Three of the lights burn out and activate their shunt resistors, effectively reducing the resistance of each one to 0.15 Ω. Howmuch current now flows through the entire string of lights?
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter17: Current And Resistance
Section: Chapter Questions
Problem 10CQ: Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew =...
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In a string of holiday lights, 50 lights—with a resistance of 13.5 Ω each—are connected in series. (a) If the string of
lights is plugged into a 120.0-V outlet, what current flows through
it? (b) Three of the lights burn out and activate their shunt resistors, effectively reducing the resistance of each one to 0.15 Ω. How
much current now flows through the entire string of lights?
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