For parallel capacitorsa total charge is
The sum of individual charges
Equal to the charge of either capacitors
Equal to the product of the charges
The quotient of the charges
Correct Answer :
A. The sum of individual charges
Related Questions
Which component opposes voltage change?
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Transistor
The arc across a switch when it open an RL circuit is a result of the
Large self-induced voltage across L
Long time constant
Low resistance of the open switch
Surge of resistance
What is the specific resistance of a pure silicon?
55 -mm
55 -m
55 -cm
55 k -m
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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15 V
20 V
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9 capacitors will be in parallel
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Infinite
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Zero
One million
Series resonance occurs when
XL= XC
XL= R
Z = R
Both A and C
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One half
Twice
Four times
One fourth
If a coil has a Q of 10a it means that
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The energy wasted in its resistance is 10 times the energy stored in the magnetic field of the coil
It is a low Q coil
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Two complex numbers or phasors are said to be conjugate if they
Differ only in the algebraic sign of their quadratic components
Differ only in the algebraic sign of their real components
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At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?
7.12 kHz
7.12 Hz
7.12MHz
7.12 GHz
When two pure sine waves of the same frequency and the same amplitude which are exactly 180� outof-phase are added togethera the result is
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A wave with half the amplitude
Zero signal
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What is the efficiency under the conditions of maximum power transfer?
Permeability is otherwise known as
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Magnetic susceptibility
Electric conductivity
Electric susceptibility
Electric energy refers to
Volt divided by coulomb
Voltampere
Volt-coulomb
Watt divided by time
A trimmer is a variable capacitor in which capacitance is varied by changing the
Number of plates
Dielectric
Distance between plates
Plate area
Rationalizing the denominator of a complex number means
Eliminating the j component in the denominator
Adding j component in the denominator
Eliminating the j component in the numerator
Adding j component in the numerator
What is the most convenient way of achieving large capacitance?
By using multiplate construction
By using air as dielectric
By decreasing distance between plates
By using dielectric of low permittivity
A term used to express the amount of electrical energy stored in electrostatic field.
Joules
Coulombs
Watts
Electron-volt
Series resonant circuit is sometimes known as
Rejector circuit
Acceptor circuit
Inductive circuit
Capacitive circuit
The electric field strength between capacitor plates has a unit
Volts per meter
Volts per mil
Amperes per meter
Amperes per mil
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Infinity
Negative
Almost zero
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What is the reciprocal of quality factor?
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Which waveform in which the rms value and the mean value are equal?
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Triangular wave
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Sawtooth
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Length
Material type
Temperature
Cross-sectional
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Resistor
Capacitor
Inductor
Both inductor and capacitor
The maximum power transfer theorem is used in
Power system
Electronic system
Refrigeration
Air conditioning
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Peak divided by square root of two
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Power reactive