1. A 1-kΩ load needs 10 mA to operate correctly. Design a practical power source to provide the needed current. The smallest source resistance you can practically design for is 50 Ω, but you can add any other series resistance if you need to.
2. A practical source delivers 25 mA to a 300-Ω load. The source delivers 5 V to a 100-Ω load. Find the maximum power available from the source.