The Thevenin’s equivalent of a circuit operating at ω

The Thevenin’s equivalent of a circuit operating at ω = 5 rad/s, has V_oc = 3.71 ∠ – 15.9° V and Z₀ = 2.38 – j 0.667 Ω . At this frequency, the minimal realization of the Thevenin’s impedance will have a

1. resistor and a capacitor and an inductor
2. resistor and a capacitor
3. resistor and an inductor
4. capacitor and an inductor

Since Thevenin’s impedence,
Z₀ = 2.38 – j 0.667 Ω
Z₀ is a combination of resistor and capacitor in series
For Minimum realization,

Z₀ = R +	1	= R +	1	= R -	j
	Cs		jωC		ωC

So Z₀ will have a resistor and a capacitor.