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Electronic Mechanic
Electronic Mechanic Set-1
Opto Electronics
1

Opto Electronics MCQ with Answers

1) What is the minimum forward current If for single colour LEDs?

5 MA

10 MA

20 MA

30 MA

Answer is:

20 MA

Explanation:

.

Opto Electronics MCQ with Answers

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Related Opto Electronics MCQ with Answers

2) What is the forward voltage drop of single colour Red LED?

1.8 V

2 V

2.1 V

2.2 V

Answer is:

1.8 V

3) What is the typical forward voltage drop of the RED colour LED?

1.8 V

2 V

2.1 V

2.2 V

Answer is:

1.8 V

4) What is the maximum reverse voltage that can be applied across the general purpose LED?

8 V

12 V

15 V

32 V

Answer is:

8 V

5) What is the typical forward voltage drop of the yellow colour LED?

2.2 V

2.1 V

2 V

1.8 V

Answer is:

2.1 V

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