irst，Calculate the input resistance Rin defined as Vin/Iin . Hint: Assuming you know the variable Vin, find Iin in terms of Vin. Substitute Iin into Vin/Iin, then variables Vin will cancel each other on the numerator and denominator. You will get a number that represents Rin.
First，Calculate the input resistance Rin defined as Vin/Iin . Hint: Assuming you know the variable Vin, find Iin in terms of Vin. Substitute Iin into Vin/Iin, then variables Vin will cancel each other on the numerator and denominator. You will get a number that represents Rin.
Second，Construct the resistive network in figure 5 with Vin = 5V from the Arduino POWER section. Measure Vin. Then, measure Iin by inserting the DMM between node n1 and n2. Divide these two values to get Rin. Report Vin, Iin, and Rin.
Then， Are the measured input resistance values the same when you use Vin = 3.3V and when you use Vin = 5V? Is Rin independent from Vin and Iin? Explain it. Also, include a photo of your circuit！
Since the question contains both numerical and practical part so solving the numerical part.
Given,
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