AC Fundamentals

AC Fundamentals

University

19 Qs

quiz-placeholder

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AC Fundamentals

AC Fundamentals

Assessment

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University

Practice Problem

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19 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A function that repeats itself after fixed intervals is said to be:

a phasor

harmonic

periodic

reactive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If v1 = 30 sin(ωt + 10°) and v2 = 20 sin(ωt + 50°), which of these statements are true?

v1 leads v2

v2 leads v1

v2 lags v1

v1 lags v2

v1 and v2 are in phase

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The imaginary part of impedance is called:

resistance

admittance

susceptance

conductance

reactance

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

The impedance of a capacitor increases with increasing frequency.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a right way to express the sinusoid  A cosωtA\ \cos\omega t  ?

 Acos 2πftA\cos\ 2\pi ft 

 A cos(2πtT)A\ \cos\left(\frac{2\pi t}{T}\right)  

 A cosω(tT)A\ \cos\omega\left(t-T\right)  

 A sin(ωt=90)A\ \sin\left(\omega t=90\right)  

6.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

The power consumed in a pure inductive circuit is ______

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these frequencies has the shorter period?

1 Krad/s

1 Khz

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