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← TechnologyWhich outcome occurs when insufficient forward bias is supplied to an LED?
A)Reduced light output or no light✓
B)Increased power consumption drastically
C)Catastrophic thermal runaway occurs rapidly
D)Reverse current significantly increases linearly
💡 Explanation
Reduced or no light output occurs because the carrier concentration provided may not surmount the built-in potential of the semi-conductor’s PN junction. Therefore there will little photon emissions, rather than the LED behaving like an active resistor and the exponential nature of a diode under forward Bias.
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