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 32-0 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 2 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 32-2 resistor? 4. What is the difference of potential across the 32-2 resistor? Across the 80-0 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 Q resistors the following resistances can be made: (a) 0.5 0; (b) 1 0; (c) 3 0; (d) 5 0. 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]