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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

Correct Answer :

C. Dissipation factor


Related Questions

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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

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

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

Which component opposes voltage change?

A. Resistor

B. Inductor

C. Capacitor

D. Transistor

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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

What is the purpose of a load in an electric circuit?

A. To increase the circuit current

B. To decrease the circuit current

C. To utilize electrical energy

D. To make the circuit complete

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4

The Q-factor of a parallel 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

With double the number of turns by the same length and areaa the inductance is

A. The same

B. Doubled

C. Quartered

D. Quadrupled

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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 reactance curve is a plot of frequency versus _____ for a series RLCcircuit

A. Current

B. Voltage

C. Gain

D. Impedance

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4

At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?

A. 7.12 kHz

B. 7.12 Hz

C. 7.12MHz

D. 7.12 GHz

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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

Which of the following is a disadvantage of a wire-wound resistor?

A. It has reactance in radio-frequency circuits

B. It cannot handle much power

C. It draws a large amount of current

D. It cannot handle high voltage

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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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A capacitor opposes change in

A. Voltage

B. Current

C. Voltage and current

D. Neither voltage nor current

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4

If an emf in circuit A produces a current in circuit Ba then the same emf in circuit Bproduces the same current in circuit ? this theorem is known as

A. Maximum power transfer theorem

B. Millman�s theorem

C. Reciprocity theorem

D. Norton�s theorem

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4

In the 5-band method of capacitor color codinga the first band indicates

A. Temperature coefficient

B. Tolerance

C. 1stdigit

D. Capacitance value

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4

A capacitor is basically constructed of

A. Two conductors separated by a dielectric

B. Two dielectric separated by a conductor

C. Conductors and dielectric

D. Conductors and semiconductors

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4

Which of the following is the most popular waveform?

A. Sinusoidal

B. Square wave

C. Triangular

D. Sawtooth

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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

The temperature-resistance coefficient of pure gold is

A.

B.

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What increases the resistance of wire at high frequencies?

A. Temperature

B. Voltage

C. Skin effect

D. Insulation

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4

Conventional flow assumes charges flow from

A. Positive to negative

B. Positive to positive

C. Negative to positive

D. Negative to negative

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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

Which of the following does not affect resistance?

A. Resistivity

B. Cross-sectional area

C. Mass

D. Length

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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

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

Capacitance increase with

A. Larger plate area and less distance between plates

B. Larger plate area and greater distance between plates

C. Smaller plate area and less distance between plates

D. Higher values of applied voltage

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4

What is the hot resistance of a 100 Wa 220 V incandescent lamp?

A.

B.

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Which of the following describes the action of a capacitor?

A. Stores electrical energy

B. Opposes changes in current flow

C. Creates a dc resistance

D. Converts ac to dc