Related Questions

The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.
A True
B False
A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the
A Oscillation will cease
B Output power would increase
C The frequency will decrease
D Bunching would occur earlier in time
The cavity resonator
A Is equivalent to an LC resonant circuit
B In a reflect klystron has its output taken from the reflector plate
C Produces a frequency which is independent of the cavity size.
D Has a low Q factor for narrow operation.
A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will
A increase
B decrease
C remain unaffected
D have its shape changed
In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________
A XL decreases and XC increases
B XL increases and XC decreases
C Line current becomes minimum
D None of the above
In a parallel LC circuit, if the input signal frequency is increased above resonant frequency then ___________
A XL increases and XC decreases
B XL decreases and XC increases
C Both XL and XC increase
D Both XL and XC decrease
If the value of C in a series RLC circuit is decreased, the resonant frequency increases
A True
B False
To tune a parallel resonant circuit to a higher frequency, the capacitance should be
A Increased
B Decreased
C Left alone
D Replaced with inductance
When either L or C is increased, the resonant frequency of LC circuit ___________
A Remains the same
B Increases
C Decreases
D Insufficient data
When a series RLC circuit is operating at its resonant frequency:
A capacitive reactance is greater than the inductive reactance
B inductive reactance is greater than the capacitive reactance
C inductive reactance is equal to the capacitive reactance
D the difference between inductive and capacitive reactance is equal to the resistance
E None of the above

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