Question is ⇒ The voltage of domestic supply is 220 V. This figure represents-, Options are ⇒ (A) Mean value, (B) r.m.s. value, (C) Peak value, (D) Average value, (E) , Leave your comments or Download question paper.

Question is ⇒ The voltage of domestic supply is 220 V. This figure represents-, Options are ⇒ (A) Mean value, (B) r.m.s. value, (C) Peak value, (D) Average value, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The voltage of domestic supply is 220 V. This figure represents-
A.	Mean value [Wrong Answer]
B.	r.m.s. value [Correct Answer]
C.	Peak value [Wrong Answer]
D.	Average value [Wrong Answer]
View Answer 13 -18 Explanation:- Answer : B Discuss it below : Divya Shinde Said on 2019-02-15 01:26:15 How to solve it !! 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 capacitors for power factor correction are rated in terms of
Voltage
VA
kW
kVAR

⇒ 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

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

⇒ 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

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

⇒ 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

⇒ For the same peak value, which of the following wave has the least mean value ?
Half wave rectified sine wave
Triangular wave
Sine wave
Square wave

⇒ Form factor for a sine wave is
1.414
0.707
1.11
0.637

⇒ A network is said to be non-linear if it does not satisfy
Homogeneity condition
Superposition condition
Both (A) and (B)
Associative condition

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

⇒ 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

⇒ 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

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

⇒ 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

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

⇒ The period of a wave is
The same as frequency
Time required to complete one cycle
Expressed in amperes
None of the above

⇒ Which of the following is not a non-linear element ?
Transistor
Heater coil
Diode
Electric arc with unlike electrodes

⇒ 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

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

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

⇒ 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

⇒ 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

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

⇒ In A.C. circuit the power curve is a sine wave having
Double the frequency of voltage
Same frequency as that of voltage
Half the frequency of the voltage
None of these

⇒ All the rules and laws of D.C. circuit also supply to A.C. circuit containing
Capacitance only
Inductance only
Resistance only
All above

⇒ The negative maximum of a cosine wave occurs at
30
45
90
180

⇒ Power factor of an inductive circuit is usually improved by connecting capacitor to it in
Parallel
Series
Either (A) or (B)
None

⇒ 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

⇒ 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