Period: Date: Homework # 25 Combination Circuits An 80-0 resistor and a 20-9 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- Q, and a voltmeter to measure the potential difference across the 32 Q is needed. Draw the circuit with the meters in place. What is the total resistance of the circuit? What current flows through the 32-9 resistor? What is the difference of potential across the 32-9 resistor? Across the 30-9 resistor? PPP!' 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 Q; (h) 1 Q; (c) 3 Q; (d) 5 Q. 7. Three wires in a circuit meet in a common point. The currents owing 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]