Advanced Higher Investigation - ResonanceWatch
So for series, I got that the resonant frequency decreased as either the capacitance or inductance increased, where the resonant frequency was produced at a max current. And for parallel the same but at a min current.
I wasn't sure what to do for a 3rd experiment and my teacher told me to add a resistor to the circuit to make it an LCR circuit. However, I'm not sure if it's much of a different experiment just adding a resistor. Is there another part of resonance I can investigate using an LCR circuit?
- Study Helper
I'm not sure if it's much of a different experiment just adding a resistor. Is there another part of resonance I can investigate using an LCR circuit?
Why do the LC circuits resonate?
Think about how energy is stored by the capacitor and then by the inductor and then ask yourself how is the energy exchanged between the two and how does that relate to the restoring force and hence amplitude of the currents and voltages?
How is the circuit excited into resonance? Is resonance sustained? Where is the energy dissipated if the resonance is not sustained?
What function does a resistor perform in a circuit?
What happens when the value of resistance changes? How then does the resistor affect the resonant circuit?
Answer these and you will be well on your way.
Please acknowledge, thanks.