Parallel resonant circuit is sometimes called as
Acceptor circuit
Rejector circuit
Inductive circuit
Capacitive circuit
Correct Answer :
B. Rejector circuit
Related Questions
A 5 F capacitor charge to 5V has a stored charge equal to
1 c
5 c
25 C
200 c
If two resistances of 9 and 6 are connected in parallela the total resistance is
An inductance of 1 mH is
0.001 H
0.01 H
0.0001 H
0.10 H
The curve between current and frequency is termed as
Voltage curve
Gain curve
Power curve
Resonance curve
A trigger circuit consisting of a capacitor of 0.01 F is connected in series with a resistor. If the circuit requires 100 Vdcto operatea determine the value of the resistor when time constant is 0.009s.
900 k
900 M
900 G
In a circuita an active element is one which
Supplies energy
Receives energy
Both supplies and receives energy
Amplifies signal
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
The mutual inductance between two coils is ___ the reluctance of magnetic path.
Directly proportional to
Inversely proportional to
Independent to
Equal to
An inductive load always has a ___ power factor
Leading
Lagging
Zero
Unity
A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance is ___ the original resistance.
Half
Twice
One-fourth
Three times
What is the conductance of a circuit having three 10 resistors in parallel?
0.3 S
3.33 S
0.33 S
30 S
A capacitor is used to
Block dc current
Pass dc current
Open voltage source
Short the voltage source
A switch designed to have low capacitance between its terminal when open.
LOCAP switch
AntiLOCAP switch
Anticapacitance switch
Capacitance switch
The usual load of a dc circuit is a/an
Resistor
Capacitor
Inductor
Both inductor and capacitor
When current and voltage arte in phase in an ac circuita the ___ is equal to zero.
Resistance
Reactance
Inductance
Capacitance
The potential gradient in a cable is maximum in
Conductor
Outer sheath
Insulation
Uniformly all over
A series RLCcircuit has a ______ power factor at its half-power points
Unity
Leading
Lagging
Either B or C
High resistance values are a consequence of the ___ of the film.
Thickness
Length
Thinness
Area
The capacitor opposes any change in voltage across it by
Passing a voltage proportional to the rate of change of current
Acting as a short circuit at time equal to zero
Passing a current proportional to the rate of change of voltage
Acting as a short circuit at time equal to infinity
Which of the following capacitors is suitable for dc filter circuits?
Mica
Ceramic
Paper
Electrolytic
In an inductive coila the rate of rise of current is maximum
Near the final maximum value of current
At midvalue of current
At half-power points
After one time constant
Which statement is true?
A series resonant circuit is of high impedance
A parallel resonant circuit is of low impedance
A series resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
A parallel resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
The factor 0.707for converting peak to rms applies only to
Square waves
Triangle waves
Sawtooth waves
Sine waves
When two pure sine waves of the same frequency and the same amplitude which are exactly 180� outof-phase are added togethera the result is
A wave with twice the amplitude
A wave with half the amplitude
Zero signal
A wave with twice the frequency
When two complex conjugates are subtracteda the result is a
Quadrature component only
Complex component
In-phase component
Real component
What is considered as the most important value of a sine wave?
Effective value
Peak value
Average value
Instantaneous value
If resonant frequency is 10 kHz and quality factor is 50a then
Bandwidth is 200 Hz
XL= is 50a000
R is 50
XC= is 50a000
What is the total resistance of a two equal valued resistors in series?
The difference of both
The product of both
Twice as one
The sum of their reciprocals
The internal resistance of an ideal voltage source is
Infinite
Equal to the load resistance
Zero
To be determined
The unit of elastance is
Farad
Daraf
Siemen
Henry