Sydney Engler 11/ 21 22 6) What is the equivalent resistance of the circuit shown? 7) What is the current measured by ammeter A shown in the diagram? 8) A 6.0-ohm lamp requires 0.25 ampere of current to operate. In which circuit below would the lamp operate correctly when switch S is closed? 6.092 A) 1.5 V_ C) 1.5 V- 6.0 9 cere D) 1.5 V- B) $ 6.09 1.5 V_ S ($ 6.09 Questions 9 and 10 refer to the following: A 50.-ohm resistor, an unknown resistor R, a 120-volt source, and an ammeter are connected in a complete circuit. The ammeter reads 0.50 ampere. 50. 2 0.50 A (A 120-volt SOURCE 9) Calculate the equivalent resistance of the circuit shown. 10) Determine the resistance of resistor R shown in the diagram. Questions 11 through 13 refer to the following: A 3.0-ohm resistor, an unknown resistor, R, and two ammeters, Al and A2, are connected as shown below with a 12-volt source. Ammeter A2 reads a current of 5.0 amperes. 5.0 A 12 V = 3.09