Question is ⇒ Two waves of the same frequency have opposite phase when the phase angle between them is, Options are ⇒ (A) 360°, (B) 180°, (C) 90°, (D) 0°, (E) , Leave your comments or Download question paper.

Question is ⇒ Two waves of the same frequency have opposite phase when the phase angle between them is, Options are ⇒ (A) 360°, (B) 180°, (C) 90°, (D) 0°, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Two waves of the same frequency have opposite phase when the phase angle between them is
A.	360° [Wrong Answer]
B.	180° [Correct Answer]
C.	90° [Wrong Answer]
D.	0° [Wrong Answer]
View Answer 17 -6 Explanation:- Answer : B Discuss it below : Info 717 Said on 2018-09-01 18:27:23 Bhai eska explaination to sow nhi ho rha. Bina explaination ke to kuchh bhi nhi h bhai explaination jrur diya kro !! 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 voltage of domestic supply is 220 V. This figure represents-
Mean value
r.m.s. value
Peak value
Average value

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

⇒ For the full wave rectified sine wave the r.m.s. value is
0.707 I_max
0.636 I_max
0.318 I_max
Zero

⇒ 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

⇒ The form factor is the ratio of
Peak value to r.m.s. value
r.m.s. value to average value
Average value to r.m.s. value
None of these

⇒ 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

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

⇒ In an A.C. circuit power is dissipated in
Resistance only
Inductance only
Capacitance only
None of the above

⇒ 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

⇒ 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

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

⇒ 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 dual of a loop is
Twig
Node pair
Mesh
Tree

⇒ Poor power factor results in all of the following EXCEPT.
Overloading of transformers
Overloading of altemators
Reduction in power losses
Reduction in load handling capacity of electrical system

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

⇒ 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

⇒ 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

⇒ Higher the Q of a series circuit
Broader its resonance curve
Narrower its pass band
Greater its band width
Sharper its resonace

⇒ Capacitors for power factor correction are rated in
kW
kVA
kV
kVAR

⇒ The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of____ degrees
90
60
45
30

⇒ The power factor of a D.C. circuit is always
Less than unity
Unity
Greater than Unity
Zero

⇒ For a sine wave with peak value E_max the average value is
0.636 E_max
0.707 E_max
0.434 E_max
1.414 E_max

⇒ For the same peak value of voltage which wave form will have the least r.m.s. value ?
Sine wave
Square wave
Triangular wave
Full wave rectified sine wave

⇒ Which of the following circuit component opposes the change in the circuit voltage
Inductance
Capacitance
Conductance
Resistance

⇒ Which of the following statement is incorrect ?
Resistance is a passive element
Voltage source is an active element
Conductance is a passive element
Current source is a passive element

⇒ The power consumed in a circuit element will be least when the phase difference between the current and voltage
180°
90°
60°
0°

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

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

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