5555555555 22. A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is ________. (a) 0.58 Ah (b) 2.1 Ah (c) 21 Ah (d) 58 Ah
5555555555 9. A 47 Ω resistor and a capacitor with 150 Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is ________. (a) Z = 47 Ω + j150 Ω (b) Z = 47 Ω – j150 Ω (c) Z = 197 Ω (d) Z = 103 Ω