1. You can choose to connect either a 4:7-kΩ resistor or a 47-kΩ resistor across a 5-V source. Which will draw the least current from the source? What is that current?
2. A model railroader wants to be able to electrically throw a rail switch RSwitch from two different locations. He designs the circuit in Figure P2-4 using two single-pole double-throw switches. Will it work? Explain.
