Related Questions
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A series RLCcircuit consists of a 10 resistor in series with L = 10 Ha and C= 100 F. Determine a new value of Ia for which the resonant frequency is one ±half the original value.
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4
Thevenin�s theorem is what form of an equivalent circuit?
C. Both current and voltage
D. Neither current nor voltage
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4
Which factor does not affect resistance?
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If the output resistance of a voltage source is 4 a it internal resistance should be
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4
An open resistor when checked with an ohmmeter reads
C. High but within the tolerance
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4
If voltage across the plates of 2 F capacitor is increased by 4 Va then charge on the plates will
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4
A switch designed to have low capacitance between its terminal when open.
C. Anticapacitance switch
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4
Which is considered as the effect of a dielectric material?
A. Increasing capacitance
B. Decreasing capacitance
C. Reducing the working voltage
D. Increasing the distance between the plates
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4
Tungsten filament of bulbs has a hot resistance higher than its cold resistance due to its temperature coefficient which is
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The reactance curve is a plot of frequency versus _____ for a series RLCcircuit
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What is the specific resistance of a pure germanium?
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What is considered as the most important value of a sine wave?
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For a carbon composition resistora typical resistance values range from
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In the 5-band method of capacitor color codinga the first band indicates
A. Temperature coefficient
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What is the reciprocal of quality factor?
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Two capacitors of capacitance 9 F and 18 F in series will have a total capacitance of
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The presence of an electric current is made known by
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What is the specific resistance of a pure silicon?
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A trigger circuit consisting of a capacitor of 0.01 F is connected in series with a resistor. If the circuit requires 100 Vdcto operatea determine the value of the resistor when time constant is 0.009s.
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4
Which of the following is a way of decreasing mutual inductance?
A. Moving the coils closer
B. Moving the coils apart
C. Decreasing the number of turns of either coil
D. Increasing the number of turns of either coil
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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
Which of the following capacitors has the highest cost per F?
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What value of R is needed with a 0.05 F Cfor an RCtime constant of 0.02 s?
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The rms value of a triangular or sawtooth waveform is ___ tim value.
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Which of the following is not a factor affecting capacitance oor?
C. Distance between plates
D. Dielectric material used
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As applied to a series RLCcircuita bandwidth means
A. The frequency range for maximum power transfer
B. The difference between the highest and lowest frequencies of the oscillator
C. The separation of the half-power points
D. The frequency at which XL= XC
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4
What determines the direction of induced emf in a conductor or coil?
B. Fleming�s left hand rule
C. Ampere�s circuital law
D. Fleming�s right hand rule
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Electric energy refers to
A. Volt divided by coulomb
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The ratio of the flux density to the electric field intensity in the dielectric is called
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Leakage resistance in a capacitor results into