Two unknown components (RLC) of a circuit

[WhiteTrout]

Homework Statement

A brief description of the current condition here; I'm in confusion.

The question states that there are 2 unknown components in a circuit and we are to find it using the given data. The voltage, current and frequency are irrelevant for the time being.
I'm more interested in the phase constant which states the current lags by 50 degrees.

Which points out that one of the component is probably an Inductor.


2. The attempt at a solution
I deduced that the circuit is most likely an LR circuit.
Because I thought that a (lagging) current phase constant of 50 degrees would probably never occur within an LC (or LL but nobody in class attempted that) circuit because they would have been parallel and opposite each other when presented in a phasor diagram.

But the lecturer promptly announced the next day (or from what I heard from others because I just arrived from another class) that it is an LC circuit.

This came as a surprise, and it is actually quite the opposite from what I have gathered from doing tutorials.
I would like to have the confusion cleared up before the finals.

Thank you.

Edit: Sorry if I had used the wrong forum. Please relocate as necessary, thanks.

 

[lippyka]

Homework Equations No equations were provided in the question.The Attempt at a SolutionIt is possible to have an LC circuit with a current phase constant of 50 degrees. This can be achieved if the inductance and capacitance of the components are equal and the resistance is also equal to the impedance of the inductor or the capacitor. This gives the circuit a resonant frequency, allowing the current to lag behind the voltage by 50 degrees. Therefore, it is possible that the circuit is an LC circuit, depending on the values of the components.