A capacitor, inductor and resistor are connected in series across an AC source. When the source frequency is f, the phase angle is positive (φ > 0, where the phase angle is defined to be positive if the voltage leads the current). Which best describes the frequency frelative to the resonance frequency f₀? - f < f₀ - f = f₀ - f > f₀ - The frequency could be any of the above.
