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Debanjana adhikari Asked a Question
April 18, 2020 10:34 pmpts 30 pts
Q6. The pins 0, 1, 2 and3 of part A of a microcontroller are connected with resistors to drive an LED at various intensities as shown in the figure. For Vcc 4.2 V and a voltage drop of 1.2 V across the LED, the range (maximum current) and resolution (step size) of the drive current are, respectively, (a) 4.0 mA and 1.0 mA (b) 15.0 mA and 1.0 mA c) 7.5 mA and 0.5 mA (d) 4.0 mA and 0.5 mA V cc A W 30.75 k A,p W .5k 3k VVV 6k Ans: (c)
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  • Vaishnavi rajora Best Answer
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