Penod: Date: Homework # 25 - Combination Circuits An 80-2 resistor and a 20-$2 resistor are connected in parallel, and then this combination is connected in series with a 32-$2 resistor and a 24-V battery. An ammeter to measure the current through the 80- 2, and a voltmeter to measure the potential difference across the 32 12 is needed. 1. Draw the circuit with the meters in place. 2. What is the total resistance of the circuit? 3. What current flows through the 32- resistor? 4. What is the difference of potential across the 32-$2 resistor? Across the 80-$2 resistor? 5. What is a fuse and how does it protect a circuit or device to which it is connected? 6. Show using diagrams how using only 2 $2 resistors the following resistances can be made: (a) 0.5 12; (b) 102; (c) 312; (d) 5 52. 7. Three wires in a circuit meet in a common point. The currents flowing in two of them are 2 A and 3 A respectively. What are the possible values of the current in the third wire? Explain your answer [drawings would help]