Related Questions
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4
At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?
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4
In liquids and gasesa ionization current results from a flow of
A. Positive or negative ions
C. Ions that are lighter in weight than electrons
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4
What is the other name of relative permittivity?
D. Specific inductance capacity
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4
Under the conditions of maximum power transfera a voltage source is delivering a power of 15 W to the load. What is the power generated by the source?
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4
What is the temperature coefficient of the resistance Eureka?
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4
What theorem is usually used in the analysis of transistor circuit?
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4
Which of the following combination of length and cross-sectional area will give a certain volume of copper the least resistance?
B. Does not matter because the volume of copper remains the same
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4
When the power factor of a circuit is zeroa
A. Power absorbed is maximum
B. Power absorbed is minimum
C. Power absorbed is zero
D. The impedance is minimum
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4
An open inductor has
A. Zero resistance and infinite inductance
B. Infinite resistance and zero inductance
C. Infinite resistance and infinite inductance
D. Zero resistance and zero inductance
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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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4
An inductive circuit of resistance 16.5 and inductance of 0.14 H takes a current of 25 ?. if the frequency is 50 Hza find the supply voltage.
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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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Which of the following is the peakiest?
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Refers specifically to steady state values of quantities in ac circuits which are complex numbers.
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What is the peak factor of a triangular wave?
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The symbol Q refers to
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The capacitance of a capacitor is ___ relative permittivity.
A. Directly proportional to
B. Inversely proportional to
D. Inversely proportional to the square of
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4
Transient period is considered over after
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4
It is impossible to change the voltage across a capacitor instantlya as this would produce ___ current.
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4
What theorem is generally used in the analysis of vacuum tubes?
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4
What capacitance exists not through design but simply because two conducting surfaces are relatively close to each other?
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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
The unit of elastance is
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The open-circuit voltage at the terminal of load RL is 60V. Under the condition of maximum power transfera the load voltage will be
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The graph between an alternating quantity and time is called
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For a linear circuita ___ voltage or current is used to calculate average power.
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Which of the following dielectric materials makes the lowest-capacitance capacitor?
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What is the resonant frequency of a circuit when L of 3 microhenrys and C of 40 picofarads are in series?
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Which of the following has negative temperature coefficient?
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In an ac wavea 30 degrees of phase is ___ of a cycle.