An RLC series circuit has a 2.60 Q resistor, a 140 μH inductor, and a 78.0 µF capacitor. (a) Find the circuit's impedance (in 2) at 120 Hz. 16.946 02 (b) Find the circuit's impedance (in 2) at 5.00 kHz. 4.751 Ω (c) If the voltage source has V Irms, 120 Hz = 0.330 Irms, 5.00 kHz = 1.179 rms = 5.60 V, what is Irms (in A) at each frequency? A A (d) What is the resonant frequency (in kHz) of the circuit? 1.707 × kHz (e) What is Irms (in A) at resonance? 2.154 A