The Q-factor of a parallel resonant circuit is also known as
Current magnification factor
Voltage magnification factor
Load factor
Leakage factor
Correct Answer :
A. Current magnification factor
Related Questions
In a series RLCcircuit
Increasing the frequency decreases the resistance
Increasing the frequency increases the resistance
Both XLand XCchange as frequency changes
Impedance will always decrease
A capacitor consists of two
Conductors only
Dielectric only
Conductors separated by a dielectric
Dielectric separated by a conductor
A capacitance of 6 ��F means
6 pF
6 nF
6 fF
6 aF
Which of the following conditions is not true for a series RLCcircuit at resonance?
Z = jXL
XL= XC
The power factor is one
The magnitude of Z is
An alloy composed of 84 % coppera 12 % manganese and 4 % nickel.
Manganin
Constantan
Nichrome
German silver wire
In a complex resistance-reactance planea XLis represented
By an axis opposite the R axis
By an axis perpendicular to the XC axis
By an axis opposite the XCaxis
By an axis parallel to the R axis
For parallel capacitorsa total charge is
The sum of individual charges
Equal to the charge of either capacitors
Equal to the product of the charges
The quotient of the charges
What is the reciprocal of quality factor?
Power factor
Reactive factor
Dissipation factor
1/Q factor
Property of an electric circuit that dissipates electric energy
Reactance
Impedance
Resistance
Conductance
If two resistances of 9 and 6 are connected in parallela the total resistance is
The temperature-resistance coefficient of pure gold is
When current and voltage arte in phase in an ac circuita the ___ is equal to zero.
Resistance
Reactance
Inductance
Capacitance
The usual load of a dc circuit is a/an
Resistor
Capacitor
Inductor
Both inductor and capacitor
The ratio of the flux density to the electric field intensity in the dielectric is called
Permittivity
Field intensity
Permeability
Elasticity
What is the half-power bandwidth of a parallel resonant circuit which has a resonant frequency of 3.6 MHz and Q of 218?
1.65 kHz
16.5 MHz
16.5 kHz
165 kHz
Which of the following represents the energy stored in a cap
CV2/2
2Q2/C
C2/V
CV
What is the cross-sectional are of a conductor whose diameter is 0.001 inch?
One micron
One angstrom
One steradian
One circular mil
Which of the following is the most popular waveform?
Sinusoidal
Square wave
Triangular
Sawtooth
The electric field strength between capacitor plates has a unit
Volts per meter
Volts per mil
Amperes per meter
Amperes per mil
The rms value of a triangular or sawtooth waveform is ___ tim value.
Resistor with colored bands in the body
Wire-wound resistor
Carbon-composition resistor
Potentiometer
Rheostat
In an RL series circuita
Current lags voltage by less than 90�
Current lags voltage by 180�
Current lags voltage by 90�
Current leads voltage by 90�
If the capacitance of mica capacitor is 5 times the capacitcitora then the relative permittivity of mica is
A capacitor of 0.5 F charged to 220 V is connected across an uncharged 0.5 F capacitor. What is the voltage across each capacitor?
220 V
150 V
110 V
22 V
Which of the following combination of length and cross-sectional area will give a certain volume of copper the least resistance?
2L and1/2 A
Does not matter because the volume of copper remains the same
L and A
½ L and 2 A
The result of rust in electrical (wire) connection is
Inductance
Conductance
Impedance
Resistance
How many coulombs are delivered by a storage battery in 25 hours if it is supplying current at the rate of 3 A?
2.592 x 105C
2.592 x 103 C
2.592 x 108 C
2.592 x 1012 C
What is the purpose of a load in an electric circuit?
To increase the circuit current
To decrease the circuit current
To utilize electrical energy
To make the circuit complete
The current is ____ times the maximum current at half-power points of a resonance curve.
The reactance curve is a plot of frequency versus _____ for a series RLCcircuit
Current
Voltage
Gain
Impedance