What can cause the voltage across reactances in a series RLC circuit to be higher than the voltage applied to the entire circuit?

What is resonance in an LC or RLC circuit?

- The highest frequency that will pass current
- The lowest frequency that will pass current
- The frequency at which the capacitive reactance equals the inductive reactance
- The frequency at which the reactive impedance equals the resistive impedance

What is the magnitude of the impedance of a series RLC circuit at resonance?

- High, as compared to the circuit resistance
- Approximately equal to capacitive reactance
- Approximately equal to inductive reactance
- Approximately equal to circuit resistance

What is the magnitude of the impedance of a parallel RLC circuit at resonance?

- Approximately equal to circuit resistance
- Approximately equal to inductive reactance
- Low compared to the circuit resistance
- High compared to the circuit resistance

What is the result of increasing the Q of an impedance-matching circuit?

- Matching bandwidth is decreased
- Matching bandwidth is increased
- Matching range is increased
- It has no effect on impedance matching

What is the magnitude of the circulating current within the components of a parallel LC circuit at resonance?

- It is at a minimum
- It is at a maximum
- It equals 1 divided by the quantity 2 times pi, multiplied by the square root of inductance L multiplied by capacitance C
- It equals 2 multiplied by pi, multiplied by frequency, multiplied by inductance

What is the magnitude of the current at the input of a parallel RLC circuit at resonance?

What is the phase relationship between the current through and the voltage across a series resonant circuit at resonance?

- The voltage leads the current by 90 degrees
- The current leads the voltage by 90 degrees
- The voltage and current are in phase
- The voltage and current are 180 degrees out of phase

How is the Q of an RLC parallel resonant circuit calculated?

- Reactance of either the inductance or capacitance divided by the resistance
- Reactance of either the inductance or capacitance multiplied by the resistance
- Resistance divided by the reactance of either the inductance or capacitance
- Reactance of the inductance multiplied by the reactance of the capacitance

How is the Q of an RLC series resonant circuit calculated?

- Reactance of either the inductance or capacitance divided by the resistance
- Reactance of either the inductance or capacitance multiplied by the resistance
- Resistance divided by the reactance of either the inductance or capacitance
- Reactance of the inductance multiplied by the reactance of the capacitance

What is the half-power bandwidth of a resonant circuit that has a resonant frequency of 7.1 MHz and a Q of 150?

What is the half-power bandwidth of a resonant circuit that has a resonant frequency of 3.7 MHz and a Q of 118?

What is an effect of increasing Q in a series resonant circuit?

- Fewer components are needed for the same performance
- Parasitic effects are minimized
- Internal voltages increase
- Phase shift can become uncontrolled

What is the resonant frequency of an RLC circuit if R is 22 ohms, L is 50 microhenries and C is 40 picofarads?

Which of the following increases Q for inductors and capacitors?

What is the resonant frequency of an RLC circuit if R is 33 ohms, L is 50 microhenries and C is 10 picofarads?