1. You have a 10 V DC power supply available and you want to use it to operate a red LED. Besides these two components, recall that your circuit will also need to include a current-limiting resistor. Answer the following: a. Show a schematic of the circuit you will use to operate the LED. b. Calculate the resistance value needed for the current-limiting resistor. c. Since the resistance value you determined will most likely not match a standard value, what resistor would you actually purchase to build this circuit? Explain how the difference between the "ideal" resistance you calculated and the resistance of the resistor you can purchase will affect the performance of your circuit. d. The selection of a resistor also requires consideration of how much power it will be required to dissipate. Resistors are available with power dissipation ratings of 1/8 W, 1/4 W, etc. Calculate how much power will be dissipated by the current-limiting resistor in your circuit. Which standard power dissipation rating would you choose for your resistor?