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1.4. The current in a certain ac circuit is independent of the frequency at a given voltage. Which combination of elements is most likely to comprise the circuit? A) resistors only B) inductors only C) capacitors only D) a combination of inductors and resistors E) a combination of inductors and capacitors 1.5. A battery is used to drive a circuit. After a certain amount of time, the current is zero amperes When the same circuit is driven by a generator, the current is non-zero and alternates. Which combination of elements is most likely to comprise the circuit? A) resistors only B) inductors only C) capacitors only D) a combination of inductors and restos E) a combination of inductors and capacitors Question 2 (11 21 The voltage across and the current through a single circuit element connected to an ac generator are shown in the graph 80 V 2 A+ (1) 2.1.1 Which circuit element is this resister, capacitor, inductor) Calculate the 2.2.2 frequency at which this circuit oscillate 2.3.3 ms current through this circuit 2.4.4 teactance of this citcuit clement (3) (3) 33 2.2 When two capacitors are connected in scries, the equivalent capacitance of the combination is 120 pF. When the two are connected in parallel, however, the equivalent capacitance is 480 pF. Calculate the capacitances of the individual capacitors 2.3 A simple RC circuit consists of a 1-F capacitor in series with a 2800-resistor, a 6 V battery, and an open switch. Initially, the capacitor is uncharged. Calculate the time taken after the switch is closed for the voltage across the capacitor to be 4.1 V. (5).