Question is ⇒ Higher the Q of a series circuit, Options are ⇒ (A) Broader its resonance curve, (B) Narrower its pass band, (C) Greater its band width, (D) Sharper its resonace, (E) , Leave your comments or Download question paper.

Question is ⇒ Higher the Q of a series circuit, Options are ⇒ (A) Broader its resonance curve, (B) Narrower its pass band, (C) Greater its band width, (D) Sharper its resonace, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Higher the Q of a series circuit
A.	Broader its resonance curve [Wrong Answer]
B.	Narrower its pass band [Correct Answer]
C.	Greater its band width [Wrong Answer]
D.	Sharper its resonace [Wrong Answer]
View Answer 11 -4 Explanation:- Answer : B Discuss it below : !! 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 :

⇒ 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

⇒ Which of the following waves has the highest value of peak factor '?
Square wave
Sine wave
Half wave rectifier sine wave
Triangular wave

⇒ 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

⇒ Power factor of electric bulb is
Zero
Lagging
Leading
Unity

⇒ The power factor of a series R-L-C circuit at its half-power points is
Unity
Lagging
Leading
Lagging or leading

⇒ In the R - L - C containing R = 4.5ω L = 0.06 H,C = 0.6 µF the power factor will be
Zero
Lagging
Leading
Unity

⇒ 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

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

⇒ 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

⇒ If resistance is 20 ω and inductance is 2H in a RL series circuit, then time constant of this circuit will be
0.001 S
0.1 S
10 S
100 S

⇒ The value of operator j2 is equal to
Zero
+1
-1
√-1

⇒ Two waves of the same frequency have opposite phase when the phase angle between them is
360°
180°
90°
0°

⇒ A sine wave of voltage varies from zero to maximum of 200 V. How much is the voltage at the instant of 30° of the cycle ?
50V
82.8V
100V
173.2 V

⇒ The best place to install a capacitor is
Very near to inductive load
Across the terminals of the inductive load
Far away from the inductive load
Any where

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

⇒ Inductance affects the direct current flow
Only at the time of turning off
Only at the time of turning on
At the time of turning on and off
At all the time of operation

⇒ For the same peak value which of the following wave will have the highest r.m.s. value ?
Square wave
Half wave rectified sine wave
Triangular wave
Sine wave

⇒ The r.m.s. value and mean value is the same in the case of
Triangular wave
Sine wave
Square wave
Half wave rectified sine wave

⇒ 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

⇒ The power is measured in terms of decibles in case of
Electronic equipment
Transformers
Current transformers
Auto-transformers

⇒ The product of apparent power and cosine of the phase angle between circuit voltage and current is
True power
Reactive power
Volt-amperes
Instantaneous power

⇒ A heater is rated as 230 V, 10 KW, AC. The value 230 V refers t
Average voltage
r.m.s. voltage
Peak voltage
None of these

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

⇒ The time period of a sine wave is 1/50 seconds. Its frequency is
20 Hz
30 Hz
40 Hz
50 Hz

⇒ The form factor of D.C. supply voltage is always
Zero
0.5
Unity
Infinite

⇒ Selectivities of different resonance circuits are compared in terms of their
Impedances
Reactances
Frequencies
Band widths

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

⇒ For a sine wave with peak value I_max the r.m.s. value is
0.5 I_max
0.707 I_max
0.9 I_max
1.414 I_max

⇒ In a purely inductive circuit
Actual power is zero
Reactive power is zero
Apparent power is zero
None of these

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