rlc circuits resonance

An RLC circuit was assembled according to the circuit diagram shown in Fig. 11.1 of the lab manual. A function generator with the output resistance of about 50 Ohms generating a sinusoidal waive of variable frequency served as an AC source. The resistor box (set for R=950 Ohms) was connected in series with a capacitor (C= 0.522 nF) and inductor (L=22mH). A sinusoidal signal applied to the circuit was registered on Ch1 of the oscilloscope, whereas the signal across the resistor on Ch 2. (Fig.1). A frequency counter was used for the accurate measurements of the frequency output of the function generator.