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4

What capacitance exists not through design but simply because two conducting surfaces are relatively close to each other?

A. Surge

B. Stray

C. Natural

D. Normal

Correct Answer :

B. Stray


Related Questions

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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

Which of the following does not refer to electrical energy?

A. Volt-ampere

B. Joule

C. Watt-second

D. Volt-coulomb

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4

The reciprocal of a complex number is

A. A complex number

B. A real number

C. An imaginary number

D. A whole number

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4

What is the reciprocal of capacitance?

A. Reluctance

B. Susceptance

C. Elastance

D. Conductance

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4

Which of the following is a common material used in wire-wound resistors?

A. Manganin

B. Carbon

C. Bronze

D. German silver wire

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4

Liquids that are good conductors because of ionization are called

A. Electrolytic

B. Bases

C. Acid

D. Electrolytes

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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

A. Decrease by 2 C

B. Increase by 2 C

C. Decrease by 4 C

D. Increase by 4C

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4

In a multiple capacitora the plate area is

A. Increased

B. The same

C. Decreased

D. Variable

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4

A trimmer is a variable capacitor in which capacitance is varied by changing the

A. Number of plates

B. Dielectric

C. Distance between plates

D. Plate area

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4

An electric circuit contains

A. Passive elements

B. Active elements

C. Both active and passive elements

D. Reactive elements

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4

An open resistor when checked with an ohmmeter reads

A. Zero

B. Infinite

C. High but within the tolerance

D. Low but not zero

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4

Which of the following represents the energy stored in a cap

A. CV2/2

B. 2Q2/C

C. C2/V

D. CV

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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

The voltage cannot be exactly in phase with the current in a circuit that contains

A. Only capacitance

B. Only resistance

C. Inductance and capacitance

D. Inductancea capacitance and resistance

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4

When the net reactance in a series coil-capacitor circuit is zero at frequency fa the nature of its reactance of frequency 2f is

A. Inductive

B. Capacitive

C. Resistive

D. Infinite

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4

The presence of an electric current is made known by

A. Electric shock

B. Effects produced

C. Magnetic shock

D. Flashing

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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

At what frequency will the current in a series RLCcircuit reach its maximum value for an applied voltage of 15 V with R = 500 a L = 100 H and C= 0.001 F?

A. 503 kHz

B. 403 kHz

C. 603 kHz

D. 303 kHz

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4

In a rectangular wavea the form factor is

A.

B.

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4

Which of the following is neither a basic physical law nor deliverable from one?

A. Ohm�s law

B. Coulomb�s law

C. Kirchhoff�s first law

D. Kirchhoff�s second law

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4

Norton�s theorem is what form of an ac equivalent circuit?

A. Voltage

B. Current

C. Both voltage and current

D. Neither voltage nor current

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4

Loop currents should be assumed to flow in which direction

A. Straight

B. Clockwise

C. Counter-clockwise

D. Either B or C arbitrarily selected

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4

What is the efficiency under the conditions of maximum power transfer?

A.

B.

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4

Electric energy refers to

A. Volt divided by coulomb

B. Voltampere

C. Volt-coulomb

D. Watt divided by time

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4

What is the total effective capacitance of two 0.25 F capacitors connected in series?

A. 0.125 F

B. 1.25 F

C. 0.50 F

D. 2.5 if

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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

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4

What is the total resistance of a two equal valued resistors in series?

A. The difference of both

B. The product of both

C. Twice as one

D. The sum of their reciprocals

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4

An alloy composed of 84 % coppera 12 % manganese and 4 % nickel.

A. Manganin

B. Constantan

C. Nichrome

D. German silver wire

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4

The Q-factor of a series resonant circuit is also known as

A. Current magnification factor

B. Voltage magnification factor

C. Load factor

D. Leakage factor

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4

When the power factor of a circuit is zeroa

A. Power absorbed is maximum

B. Power absorbed is minimum

C. Power absorbed is zero

D. The impedance is minimum