Which outcome occurs when insufficient forward bias is supplied to an LED?

💡 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.

• Within a hydrostatic transmission system incorporating accumulators for energy regeneration, which risk significantly increases when thermal expansion causes excessive accumulator pressure?
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• Which consequence results when cumulative joint clearance exceeds calibrated limits in a robot arm following a programmed inverse kinematics trajectory?
• Which outcome occurs when a reinforced concrete beam experiences alkali-silica reaction (ASR)?
• Which outcome occurs when the evaporator coil in an industrial chiller plant develops ice buildup?
• Which consequence results when exceeding quantization levels in analog-to-digital voice processing?