Question 2: Which of the current phasors describes the current relation: i = 5.0 cos(4.0 t) [units in A], at a time t = 0.60 s? (Note: the argument of the cos is given in rad for t in sec) 5.0 AR 3.7 A y 5.0 A A) B) C)v and i Question 3: The time dependences V of the instantaneous current and voltage in a given ac circuit are shown in the upper diagram. 0 Choose the phasor diagram that Current i matches that diagram. Voltage v Ic VL VR IR Vc Wt wot A) B) C)Page 6 Question 1: If the instantaneous emf represented by this phasor is -5.0 V and O is 60, then the peak emf co is: A) 10 V B) 2.5 V E C) 5.8 V e D) 4.3 V EoQuestion 4: An RLC circuit, where R = 1.0 0, L = 0.50 H, C = 0.16 F receives through the antenna a signal of frequency f and peak voltage 5.0 V. The circuit resonates when A) f = 3.5 Hz. The peak current in the circuit is 0.46 A. B) f = 3.5 Hz. The peak current in the circuit is 5.0 A. C) f = 2.0 Hz. The peak current in the circuit is 0.85 A. D) f = 0.56 Hz. The peak current in the circuit is 5.0 A