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Circuits 2 > Midterm Exam > Flashcards

Midterm Exam Flashcards

1
Q

the fundamental alternating current (ac) and alternating voltage waveform.

A

sinusoidal waveform (sine wave)

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2
Q

It is a disturbance.

A

Wave

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3
Q

are characterized by the amplitude and period

A

Sine waves

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4
Q

the maximum value of a voltage or current

A

Amplitude

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5
Q

the time interval for one complete cycle

A

Period

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6
Q

the number of cycles that a sine wave completes in one second

A

Frequency ( f )

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7
Q

Measured in Hertz

A

Frequency ( f )

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8
Q

are produced by ac generators and electronic oscillators.

A

Sinusoidal voltages

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9
Q

The rms value is ________ times the peak value.

A

0.707

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10
Q

the average value is as times the peak value.

A

0.637

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11
Q

an angular measurement that specifies the position of a sine wave relative to a reference

A

phase of a sine wave

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12
Q

the projection of a vector rotating at a constant rate

A

phasor

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13
Q

allow ac calculations to use basic trigonometry

A

Phasors

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14
Q

The velocity of rotation

A

Angular velocity

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15
Q

repetition rate of the waveform

A

fundamental frequency

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16
Q

frequencies that are odd multiples of the fundamental frequency

A

Odd harmonics

17
Q

frequencies that are even multiples of the fundamental frequency

A

Even harmonics

18
Q

composed only of the fundamental frequency and odd harmonics

A

Square wave

19
Q

Current that reverses direction in response to a change in source voltage polarity

A

Alternating current

20
Q

The voltage or current value of a waveform at a given instant in time.

A

Instantaneous value

21
Q

The voltage or current value of a waveform at its maximum positive or negative points.

A

Peak value

22
Q

The voltage or current value of a waveform measured from its minimum to its maximum points.
The va

A

Peak-to-peak value

23
Q

The value of a sinusoidal voltage that indicates its heating effect, also known as effective value.

A

Rms value

24
Q

Rms stands for?

A

Root mean square

25
Q

A unit of angular measurement

A

Radian

26
Q

A type of waveform that consists of two equal and opposite steps in voltage or current separated by a time interval.

A

Pulse

27
Q

The frequencies contained in a composite waveform, which are integer multiples of the pulse repetition frequency

A

Harmonics

28
Q

A type of waveform that follows a cyclic sinusoidal pattern defined by the formula y = A sin theta

A

Sine wave

Circuits 2 (1 decks)

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