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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
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Electronic Devices and Circuits
In the circuit of figure the function of resistor R and diode D are
to limit the current and to protect LED against over voltage
to limit the voltage and to protect LED against over current
to limit the current and protect LED against reverse breakdown voltage.
none of the above.
Show Answer
Correct Answer:
to limit the current and protect LED against reverse breakdown voltage.
Explanation:
Resistance limits current and diode is reverse connected and therefore protects LED against reverse breakdown.
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