Related Questions
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4
What fusion of elements is without chemical action between them?
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For a parallel ACcircuita ___ is used as a reference phasor.
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The curve between current and frequency is termed as
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4
What is the purpose of a load in an electric circuit?
A. To increase the circuit current
B. To decrease the circuit current
C. To utilize electrical energy
D. To make the circuit complete
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4
The farad is not equivalent to which of the following combination of units
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4
An electric circuit contains
C. Both active and passive elements
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What is the most common non-sinusoidal waveform?
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Refers specifically to steady state values of quantities in ac circuits which are complex numbers.
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A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by
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What is a rotating vector whose projection can represent either current or voltage in an ac circuit?
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How many coulombs are delivered by a storage battery in 25 hours if it is supplying current at the rate of 3 A?
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Which of the following does not affect resistance?
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Another term of the quality factor of the resonant circuit.
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If one resistance in a series connection is opena then
A. The current is zero in all the other resistances
B. The current is maximum in all the other resistances
C. The voltage is zero across the open resistance
D. The voltage is infinite across the open resistance
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4
For multi-plate capacitora capacitance is proportional to
A. Number of plates less one(n ± 1)
B. Number of plates plus one(n + 1)
C. Number of plates less two(n - 2)
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What is the total effective capacitance of two 0.25 F capacitors connected in series?
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The Q-factor of a parallel resonant circuit is also known as
A. Voltage magnification factor
B. Current magnification factor
C. Gain magnification factor
D. Resonance magnification factor
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Permeability is otherwise known as
B. Magnetic susceptibility
D. Electric susceptibility
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Loop currents should be assumed to flow in which direction
D. Either B or C arbitrarily selected
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What maximum voltage can be applied across the capacitor of time?
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The reason why alternating current can induce voltage is
A. It has high peak value
B. It has a stronger magnetic field than direct current
C. It has a constant magnetic field
D. It has a varying magnetic field
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4
The value of temperature coefficient ( ) is dependent upon
A. The nature of material and temperature
B. The length of material
C. The cross-sectional area of the material
D. The volume of the material
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The maximum power transfer theorem is used in
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Refers to the outward-curving distortion of the lines of force near the edges of two parallel metal plates that form a capacitor.
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A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance is ___ the original resistance.
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At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?
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When two coils of identical reactance are in parallel without mutual inductancea the reactance of the combination is ___ the reactance of each coil.
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4
Liquids that are good conductors because of ionization are called
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The power factor of a circuit is equal to
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The internal resistance of an ideal voltage source is
B. Equal to the load resistance