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The most satisfactory LED driver circuit given below:
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- 1
- 2
- 3
- 4
Correct Option: A
In order to reduce power consumption, LEDs are always loaded with resistors as in option (A) and (C). However between option (A) and (C) a option (A) is more satisfactory because the LED current is supplied by power supply instead of the gate in option (C).
Beside this logic given in option (A) is low level as LED glows when input is high.
