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Assume that an LED is tobepowered bya 12VDC. Toensure a current draw of 20mA a current-limiting resistor is used in series with the LED. Specify the electrical properties of the current- limiting resistor to be used in this application (in other words, determine the resistor value and its power rating). The LED used has a voltage drop of 1.9 volts.

Assume that an LED is tobepowered bya 12VDC. Toensure a current draw of 20mA a current-limiting resistor is used in series with the LED. Specify the electrical properties of the current- limiting resistor to be used in this application (in other words, determine the resistor value and its power rating). The LED used has a voltage drop of 1.9 volts.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Assume that an LED is tobe poweredbya 12VDC. Toensure a current draw of 20mA a current-limiting resistor is used in series with the LED. Specify the electrical properties of the current- limiting resistor to be used in this application (in other words, determine the resistor value and its power rating). The LED used has a voltage drop of 1.9 volts.
Transcribed Image Text:Assume that an LED is tobe poweredbya 12VDC. Toensure a current draw of 20mA a current-limiting resistor is used in series with the LED. Specify the electrical properties of the current- limiting resistor to be used in this application (in other words, determine the resistor value and its power rating). The LED used has a voltage drop of 1.9 volts.
8) 12v .0LDA 6000 %3D The size resistor would need is 6007 You the nearest standand size 60.12 12x-1.9r-16.1 (20A P- (0.1 .164 watt 680 620 .170 watt Need about 4-watt resiadzr to be added to the Circurt.
Transcribed Image Text:8) 12v .0LDA 6000 %3D The size resistor would need is 6007 You the nearest standand size 60.12 12x-1.9r-16.1 (20A P- (0.1 .164 watt 680 620 .170 watt Need about 4-watt resiadzr to be added to the Circurt.
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