Semiconductor Electronics · p-n junction and diodes
The maximum rated power of the LED is 2 mW and it is used in the circuit with input voltage of 5 V as shown in the figure below. The current through resistance is 0.5 mA.
The minimum value of the resistance of , to ensure that the LED is not damaged is k.
The minimum value of the resistance of , to ensure that the LED is not damaged is k.

- (1)6
- (2)2
- (3)4
- (4)5
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