Capacitive susceptance is a measure of__________?
What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?
In a parallel R-C circuit, the current always________the applied voltage?
Which of the following refers to a parallel circuit ?
In a sine wave the slope is constant_______?
In an A.C. circuit power is dissipated in__________?
Skin effect occurs when a conductor carries current at_______ frequencies
The power is measured in terms of decibles in case of_________?
At _______ frequencies the parallel R-L circuit behaves as purely resistive
At very low frequencies a series R-C circuit behaves as almost purely__________?
The frequency of domestic power supply in Pakistan is_________?
In a three-phase supply floating neutral is undesirable because it way give rise to__________?
The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be__________?
Which of the following waves has the highest value of peak factor __________?
The inductance of a coil can be increased by_________?
The phosphors for which of the following pair are 180° out of phase for VL, VC and VR______?
The r.m.s. value of pure cosine function is_________?
The series and parallel resonance on L-C circuit’ differs in that_________?
The frequency of an alternating current is__________?
Ohm is unit of all of the following except__________?
The equation of 50 Hz current sine wave having r.m.s. value of 60 A is__________?
The power factor of a D.C. circuit is always__________?
In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will__________?
In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will__________?
An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?
The product of apparent power and cosine of the phase angle between circuit voltage and current is
A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to________?
When an alternating current passes through an ohmic resistance the electrical power converted into heat is__________?
In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. value of 220 V is induced. Which of the following values is indicated by the voltmeters ______?
The power factor at resonance in R-L- C parallel circuit is________?
In a pure inductive circuit__________?
In the case of an unsymmetrical alternating current the average value must always be taken over__________?
The transient currents are associated with the__________?
In a pure resistive circuit__________?
In a circuit containing R, L and C, power loss can take place in__________?
The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces__________?
The time constant of the capacitance circuit is defined as the time during which voltage________?
The square waveform of current has following relation between r.m.s. value and average value?
In a loss-free R-L-C circuit the transient current is__________?
Power factor of the system is kept high__________?
Power factor of the following circuit will be zero__________?
Pure inductive circuit__________?
Inductance of a coil Varies__________?
In a highly capacitive circuit the__________?
Inductance affects the direct current flow__________?
In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value__________?
Poor power factor________?
Time constant of an inductive circuit__________?
Capacitive reactance is more when_______?
For a frequency of 200 Hz, the time period will be__________?
Capacitors for power factor correction are rated in_________?

Aphasoris________?

A. a line which represents the magnitude and phase of an alternating quantity
B. a line representing the magnitude and direction of an alternating quantity
C. a coloured tag or band for distinction between different phases of a 3-phase supply
D. an instrument used for measuring phases of an unbalanced 3-phase load

Correct Answer: a line which represents the magnitude and phase of an alternating quantity ✔

Last Updated: December 11, 2018