Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 59, Problem 3RQ
What is the average forward voltage drop of an LED?
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An LED is to be connected into a 40-volt DC circuit. If the LED has a maximum current flow of 20 mA, what size resistor should be used to limit the current flow through the LED?
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10. A diode under forward biasing acts like
(a) an open switch
(b) a closed switch
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