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Electronics Mechanic
OPTO ELECTRONICS
Set 1
Set 1
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Q4373
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What is the minimum forward current If for single colour LEDs?
A
5 MA
B
10 MA
C
20 MA
D
30 MA
Q4374
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What is the forward voltage drop of single colour Red LED?
A
1.8 V
B
2 V
C
2.1 V
D
2.2 V
Q4375
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What is the typical forward voltage drop of the RED colour LED?
A
1.8 V
B
2 V
C
2.1 V
D
2.2 V
Q4376
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What is the maximum reverse voltage that can be applied across the general purpose LED?
A
8 V
B
12 V
C
15 V
D
32 V
Q4377
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What is the typical forward voltage drop of the yellow colour LED?
A
2.2 V
B
2.1 V
C
2 V
D
1.8 V
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