Question is ⇒ A parallel resonant circuit can be used, Options are ⇒ (A) As a high impedance, (B) To reject a small band of frequencies, (C) Both (A) and (B), (D) To amplify certain frequencies, (E) , Leave your comments or Download question paper.

Question is ⇒ A parallel resonant circuit can be used, Options are ⇒ (A) As a high impedance, (B) To reject a small band of frequencies, (C) Both (A) and (B), (D) To amplify certain frequencies, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A parallel resonant circuit can be used
A.	As a high impedance [Wrong Answer]
B.	To reject a small band of frequencies [Wrong Answer]
C.	Both (A) and (B) [Correct Answer]
D.	To amplify certain frequencies [Wrong Answer]
View Answer 9 -4 Explanation:- Answer : C Discuss it below : Ayyanagouda Said on 2017-03-06 22:31:20 C !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ The frequency of domestic power supply in India is
200 Hz
100 Hz
60 Hz
50 Hz

⇒ The r.m.s. value of pure cosine function is
0.5 of peak value
0.707 of peak value
Same as peak value
Zero

⇒ At half power points of a resonance curve, the current is____ times the maximum current.
1/2
1/ √2
√2
2

⇒ Power factor of electric bulb is
Zero
Lagging
Leading
Unity

⇒ At____ frequencies the parallel R-L circuit behaves as purely resistive.
Low
Very low
High
Very high

⇒ Two sinusoidal quantities are said to be phase quadrature, when their phase difference is
0
30°
45°
90°

⇒ The transient currents are associated with the
Changes in the stored energy in the inductors and capacitors
Impedance of the current
Applied voltage to the circuit
Resistance of the circuit

⇒ Power factor of the following circuit will be unity
Inductance
Capacitance
Resistance
Both (A) and (B)

⇒ Skin effect occurs when a conductor carries current at____ frequencies.
Very low
Low
Medium
High

⇒ In an A.C. circuit, a low value of kVAR compared with kW indicates
Low efficiency
High power factor
Unity power factor
Maximum Load current

⇒ For 200 V r.m.s. value triangular wave, the peak voltage will be
200 V
222 V
282 V
346 V

⇒ The ratio of active power to apparent power is known as ____ factor.
Demand
Load
Power
Form

⇒ The power taken by a 3-Φ load is given by the expression
√3 V_L I_L sinΦ
√3 V_L I_L cosΦ
3 V_L I_L sinΦ
3 V_L I_L cosΦ

⇒ The reflection co-efficient of the simplest standing wave is
+1
1
Zero
Infinity

⇒ In a pure resistive circuit
Current lags behind the voltage by 90°
Current leads the voltage by 90°
Current can lead or lag the voltage by 90°
Current is in phase with the voltage

⇒ A parallel resonant circuit can be used
As a high impedance
To reject a small band of frequencies
Both (A) and (B)
To amplify certain frequencies

⇒ The shunt element in a band pass filter is
Capacitive
Inductive
Parallel combination of L and C
Series combination of L and C

⇒ While drawing vector diagram for a series circuit the reference vector is
Voltage
Current
Power
Phase angle

⇒ The series element of a band stop filter is
Capacitive
Inductive
Parallel combination of L and C
Series combination of L and C

⇒ The peak value of a sine wave is 200 V. Its average value is
127.4V
141.4V
282.8V
200 V

⇒ In an A.C. circuit I sin Φ is called
Active component
Wattless component
Any of the above
None of these

⇒ In a R-L-C series circuit if voltage V across the circuit is reduced to half the current I will change to
2 I
I/2
3/4 I
5/8 I

⇒ Capacitive reactance is more when
Capacitances is less and frequency of supply is less
Capacitance is less and frequency of supply is more
Capacitance is more and frequency of supply is less
Capacitance is more and frequency of supply is more

⇒ In a circuit containing R, L and C, power loss can take place
C only
L only
R only
All of the above

⇒ The power factor at resonance in RLC parallel circuit is
Zero
0.08 Lagging
0.8 Leading
Unity

⇒ The time constant of a series R-C circuit is given by
R/C
RC²
RC
R²C

⇒ The unit of frequency of an A.C. signal is
Cycle
Cycle-sec
Hertz
Hertz/sec

⇒ The r.m.s. value of a sine wave is 100A. Its peak value is
70.7 A
141.4A
150A
282.8 A

⇒ The voltage of domestic supply is 220 V. This figure represents-
Mean value
r.m.s. value
Peak value
Average value

⇒ In a series resonant circuit, the impedance of the circuit is
Maximum
Minimum
Zero
Infinite