Related Questions
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4
Inductive reactance applies only to sine waves because it
A. Increases with lower frequencies
B. Increases with lower inductance
C. Depends on the factor 2
D. Decreases with higher frequencies
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4
Which of the following conditions is not true for a series RLCcircuit at resonance?
C. The power factor is one
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4
The farad is not equivalent to which of the following combination of units
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4
An alloy composed of 84 % coppera 12 % manganese and 4 % nickel.
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4
The internal resistance of an ideal current source is
C. Equal to the load resistance
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4
The electric field strength between capacitor plates has a unit
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4
What is the value of a carbon composition resistor with the following color code: Browna whitea orangea red
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4
In a parallel bank with unequal branch resistances
A. The highest R has the highest I
B. The lowest R has the highest V
C. The lowest R has the highest V
D. The highest R has the highest V
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4
The factor 0.707for converting peak to rms applies only to
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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
Which of the following does not affect resistance?
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4
A factor that states how much the resistance changes for a change in temperature?
C. Coefficient of temperature change
D. Temperature coefficient of 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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4
A capacitor opposes change in
D. Neither voltage nor current
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4
The charge in the capacitor is stored at the
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4
Which of the following has negative temperature coefficient?
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4
Electric energy refers to
A. Volt divided by coulomb
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4
And ideal current source has an internal conductance of _____ siem
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4
Which of the following materials has the lowest dielectric strength?
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4
The ratio between the reactive power and the apparent power of an ac load is called
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4
The unit of elastance is
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4
What is the reading of an ohmmeter for a shorted capacitor?
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4
What is expected when two 20 k a 1 watt resistor in parallel are use instead of one 10 k a 1 watt?
A. Provides higher current
D. Provides wider tolerance
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4
The second strip of an electronic resistor color-code represents
B. The second digit of the value
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4
Which of the following dielectric materials makes the highest-capacitance capacitor?
B. Barium-strontium titanite
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4
The area of capacitor plates increases two timesa then its capacitance
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4
In a resonant circuita if Q ? 10 resonant frequency _______ bandwidth.
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4
Which factor does not affect resistance?
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4
What fusion of elements is without chemical action between them?
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When two in-phase sine waves that have identical frequency and amplitude are added togethera then the result is a sine wave with ___ the amplitude of either.