By increasing the resistance of a coil you can increase the Q of the coil at resonance.

More Questions from RLC Circuits and Resonance

• The current lags the voltage in the given circuit.
• The voltage across the inductor is 77.8 volts.
• This circuit is a high-pass filter.
• The quality factor at resonance of a series circuit is VR/VL.
• The impedance is 9684 Ω.
• Series LC combinations are used more often in tuned amplifier circuits than are parallel LC combinations.
• If the output voltage were taken across the resistor in the given circuit, the circuit would be a band-stop filter.
• Resonance will occur when XC = XL in the circuit below.
• The impedance is 160 Ω.
• The greater the selectivity, the wider the bandwidth.

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