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What is the correct answer?

4

For series capacitorsa total charge is

A. The sum of individual charges

B. Equal to the charge of either capacitors

C. Equal to the product of the charges

D. The quotient of the charges

Correct Answer :

B. Equal to the charge of either capacitors


Related Questions

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4

A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by

A. 10 +j 5

B. 10 + j 10

C. 10 ± j 5

D. 10 ± j 10

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4

The curve between current and frequency is termed as

A. Voltage curve

B. Gain curve

C. Power curve

D. Resonance curve

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4

In a resonant circuita if Q ? 10 resonant frequency _______ bandwidth.

A. Bisects

B. Exceeds

C. Is less than

D. Is equal to

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4

A tank circuit is a

A. Parallel LC circuit

B. Series LCcircuit

C. A resonant circuit

D. A non-resonant circuit

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4

A capacitor opposes change in

A. Voltage

B. Current

C. Voltage and current

D. Neither voltage nor current

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4

Norton�s theorem is ____ Thevenin�s theorem.

A. The same as

B. The converse of

C. Older that

D. More accurate than

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4

A rheostat is a form of

A. Variable resistor

B. Variable capacitor

C. Potentiometer

D. Thermocouple

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4

Which of the following capacitors has the highest cost per F?

A. Plastic

B. Air

C. Mica

D. Electrolytic

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4

For parallel capacitorsa total charge is

A. The sum of individual charges

B. Equal to the charge of either capacitors

C. Equal to the product of the charges

D. The quotient of the charges

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4

Form its definitiona the unit of electric fielda is the N/C and equivalent unit of is the

A. V(m)2

B. V(m)

C. V/m2

D. V/m

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4

Which of the following does not affect resistance?

A. Resistivity

B. Cross-sectional area

C. Mass

D. Length

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4

According to Gauss theorema flux can be equated to

A. Charge

B. Field intensity

C. Current

D. Voltage

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4

When capacitors are connected in seriesa the total capacitance is

A. Smaller than the smallest capacitor

B. Smaller than the largest capacitor

C. Greater than any of the capacitor

D. Greater than the largest capacitor

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4

The internal resistance of an ideal current source is

A. Infinite

B. Zero

C. Equal to the load resistance

D. To be determined

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4

High resistance values are a consequence of the ___ of the film.

A. Thickness

B. Length

C. Thinness

D. Area

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4

Thevenin�s theorem is what form of an equivalent circuit?

A. Current

B. Voltage

C. Both current and voltage

D. Neither current nor voltage

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4

A factor that states how much the resistance changes for a change in temperature?

A. Resistivity

B. Specific resistance

C. Coefficient of temperature change

D. Temperature coefficient of resistance

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4

For a series circuita the higher the quality factor

A. The greater the bandwidth

B. The narrower the passband

C. The broader the resonance curve

D. The wider the passband

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4

In an RL series circuita

A. Current lags voltage by less than 90�

B. Current lags voltage by 180�

C. Current lags voltage by 90�

D. Current leads voltage by 90�

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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.

A. 1501 V

B. 1174V

C. 1877V

D. 991 V

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4

And ideal current source has an internal conductance of _____ siem

A. Infinite

B. One

C. Zero

D. One million

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4

The charging of a capacitor through a resistance follows what law?

A. Linear law

B. Hyperbolic law

C. Inverse-square law

D. Exponential law

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4

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.

A. Half

B. Twice

C. Four times

D. One-fourth

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4

VL= VCin a series RLCcircuit when

A. The value of the impedance is minimum

B. The power factor is zero

C. The current leads the total voltage by 90�

D. The total voltage is zero

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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

Electron flow assumes charges flow from

A. Negative to positive

B. Negative to negative

C. Positive to negative

D. Positive to positive

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4

In an ac circuit with XL and R in seriesa the

A. Voltages across R and XL are in phase

B. Voltage across R lags the voltage across XLby 90°

C. Voltages across R and XL are 180° outof-phase

D. Voltage across R leads the voltage across XLby 90°

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4

The ratio between the active power and the apparent power of a load in an ac circuit is called

A. Quality factor

B. Power factor

C. Power ratio

D. Power reactive

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4

Refers specifically to steady state values of quantities in ac circuits which are complex numbers.

A. Domain

B. Scalar quantity

C. Vector quantity

D. Phasor quantity

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4

The ratio of the flux density to the electric field intensity in the dielectric is called

A. Permittivity

B. Field intensity

C. Permeability

D. Elasticity