Physics · I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator
The typical operating current for a lightemitting diode is approximately:
The typical operating current for a lightemitting diode is approximately:
- A. 1 to \( 5 m A \)
- B. 5 to \( 20 m A \)
- C. 20 to \( 500 m A \)
- D. 500 to \( 2000 m A \)
Step-by-step solution
Typical light-emitting diodes (LEDs) used for indicators operate at currents between 5 mA and 20 mA. Lower currents (1-5 mA) may not produce sufficient brightness, while higher currents (20-500 mA or more) are for high-power LEDs requiring heat sinks. Thus, option B is the standard range.
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