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4

A capacitance of 0.05 F equals

A. 0.05 x 106F

B. 0.05 x 10-6F

C. 0.05 x 10-12F

D. 0.05 x 1012F

Correct Answer :

B. 0.05 x 10-6F


Related Questions

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4

In liquids and gasesa ionization current results from a flow of

A. Positive or negative ions

B. Free electrons

C. Ions that are lighter in weight than electrons

D. Protons

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4

In adding or subtracting phasor quantitiesa ___ form is the most convenient.

A. Polar

B. Rectangular

C. Trigonometric

D. Exponential

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4

Which of the following is the peakiest?

A. Square wave

B. Sinusoidal wave

C. Triangular wave

D. Rectangular wave

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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

What determines the magnitude of electric current?

A. The rate at which electrons are produced

B. The type of material used

C. The current carrying capacity of the circuit

D. The rate at which electrons pass a given point

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4

The distance between the capacitor plates increases two timesa then its capacitance

A. Increases two times

B. Increases four times

C. Decreases two times

D. Decreases four times

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4

What is a rotating vector whose projection can represent either current or voltage in an ac circuit?

A. Polar diagram

B. Scalar quantity

C. Velocity

D. Phasor

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4

If one resistance in a series connection is opena then

A. The current is zero in all the other resistances

B. The current is maximum in all the other resistances

C. The voltage is zero across the open resistance

D. The voltage is infinite across the open resistance

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4

For a carbon composition resistora typical resistance values range from

A. 2.7 to 22 M

B. 1000 to 10000

C. 10 to 10 M

D. 2.7 to 2.7G

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4

For a linear circuita ___ voltage or current is used to calculate average power.

A. Rms

B. Peak

C. Average

D. Instantaneous

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4

In a series RLCcircuit

A. Increasing the frequency decreases the resistance

B. Increasing the frequency increases the resistance

C. Both XLand XCchange as frequency changes

D. Impedance will always decrease

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4

What is the value of a carbon composition resistor with the following color code: Browna whitea orangea red

A. 190 ; 10 %

B. 19 k ; 2 %

C. 19 k ; 20 %

D. 1.9 k ; 2 %

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4

What is the reciprocal of capacitance?

A. Reluctance

B. Susceptance

C. Elastance

D. Conductance

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4

The average value of a triangular or sawtooth wave is _____ times its peak value.

A.

B.

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4

A lead conductor has a resistance of 25 at 0 �C. Determine its resistance at -30 �C

A.

B.

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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

The temperature-resistance coefficient of pure gold is

A.

B.

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4

Which of the statements below is not true?

A. Current source is an active element

B. Resistor is a linear element

C. Voltage source is a passive element

D. Diode is a non-linear element

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4

Which of the following elements is active?

A. Resistor

B. Inductor

C. Capacitor

D. Ideal voltage source

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4

An intermittent and non-symmetrical alternating current like that obtained from the secondary winding of an induction coil

A. Faradic current

B. Transient ac current

C. Inductive current

D. Capacitive current

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4

What is the reciprocal of quality factor?

A. Power factor

B. Reactive factor

C. Dissipation factor

D. 1/Q factor

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4

Which of the following is a preferred resistor value?

A.

B.

C. 43a000

D. 54a321

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4

The result of rust in electrical (wire) connection is

A. Inductance

B. Conductance

C. Impedance

D. Resistance

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4

What is the other name of relative permittivity?

A. Dielectric strength

B. Potential gradient

C. Breakdown voltage

D. Specific inductance capacity

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4

When current and voltage arte in phase in an ac circuita the ___ is equal to zero.

A. Resistance

B. Reactance

C. Inductance

D. Capacitance

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4

Barium-strontium titanite dielectric material is also called

A. Ceramic

B. Polyster

C. Electrolytic

D. Bakelite

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4

What refers to the lowest voltage across any insulator that can cause current flow?

A. Conduction voltage

B. Critical voltage

C. Breakdown voltage

D. Voltage capacity

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4

Which of the following dielectric materials makes the highest-capacitance capacitor?

A. Air

B. Barium-strontium titanite

C. Mica

D. Electrolyte

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4

When capacitors are connected in parallela the total capacitance is

A. Greater than the largest capacitor

B. Smaller than the largest capacitor

C. Smaller than the smallest capacitor

D. Greater than the smallest capacitor

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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