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May 16, 2020 11:27 am 30 pts
The pins 0, 1, 2 and 3 of part A ofa microcontroller are connected with resistors to drive Vcc an LED at various intensities as shown in the figure. For Vec=4.2V and a voltage drop of 1.2 V across the LED, the range (maximum current) and resolution (step síze) of the drive current are, respectively, AP 13 k A W 1.5k 3k 6k uC A (a) 4.0 mA and 1.0 mA (b) 15.0 mA and 1.0 mA (c) 75 mA and 0.5 mA (d) 4.0 mA and 0.5 mA Ao w
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• Abhishek singh
Complete solution with explaintion is attached. go through it. And ask doubts if any. Best regards.
• Ruby negi
for minimum current, when current flow through max resistance that is 6k so current is 3/6=0.5mA.... hope you get...
• Ruby negi
solution... also see this.
• Dhairya sharma
and resolution means it's maximum power which it can distribute for this we do voltage difference / mimium resistance. in last we take all the resistance and voltages . here onky m...
• Dhairya sharma
dear for maximum current what we will do.... just (Vcc - voltage drop) / minimum resistance.like m attaching
• Ruby negi
solution