Alternating Current MCQs with Answers

adminJune 10, 2024

0 1 1 minute read

Welcome to the Alternating Current MCQs with Answers. In this post, we have shared Alternating Current Online Test for different competitive exams. Find practice Alternating Current Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Alternating Current.

Alternating Current Online Quiz

By presenting 3 options to choose from, Alternating Current Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Alternating Current Questions and Answers and click over the correct answer.

Test Name: Alternating Current MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Alternating Current

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1 / 40

What is the average power consumed in a purely resistive AC circuit?

Voltage squared divided by resistance

Voltage divided by current

Voltage times current

2 / 40

What is the phase difference between voltage and current in a purely capacitive AC circuit?

180 degrees

Zero degrees

90 degrees

3 / 40

What is the phase difference between voltage and current in a purely resistive-capacitive-inductive AC circuit?

Zero degrees

180 degrees

90 degrees

4 / 40

What is the phase difference between voltage and current in a purely capacitive-inductive AC circuit?

90 degrees

180 degrees

Zero degrees

5 / 40

What is the phase difference between voltage and current in a purely inductive AC circuit?

180 degrees

90 degrees

Zero degrees

6 / 40

What is the peak value of an AC waveform?

Maximum value

RMS value

Average value

7 / 40

What is the phase difference between voltage and current in a purely capacitive-inductive AC circuit?

Less than 90 degrees

More than 90 degrees

Exactly 90 degrees

8 / 40

What is the instrument used to measure resistance in an AC circuit?

Ohmmeter

Voltmeter

Ammeter

9 / 40

What is the phase difference between voltage and current in a purely resistive-capacitive AC circuit?

Exactly 90 degrees

Less than 90 degrees

More than 90 degrees

10 / 40

What is the characteristic of an AC waveform that determines the number of cycles per second?

Phase

Frequency

Amplitude

11 / 40

What is the unit of peak-to-peak voltage?

Volts

Hertz

Watts

12 / 40

What is the relationship between frequency and time period for an AC waveform?

Directly proportional

No relationship

Inversely proportional

13 / 40

What type of current flows in one direction only?

Alternating current

Transient current

Direct current

14 / 40

What is the frequency of AC commonly expressed in?

Hertz

Volts

Watts

15 / 40

What is the characteristic of an AC waveform that determines its rate of change?

Amplitude

Frequency

Phase

16 / 40

What is the unit of apparent power?

Volt-ampere reactive

Watts

Volt-ampere

17 / 40

What is the relationship between peak value and RMS value for an AC waveform?

Peak value times square root of 2

RMS value divided by square root of 2

RMS value times square root of 2

18 / 40

What is the characteristic of an AC waveform that determines its displacement from the zero point?

Amplitude

Phase

Frequency

19 / 40

What type of current periodically changes direction?

Alternating current

Transient current

Direct current

20 / 40

What is the unit of reactive power?

Volt-ampere

Watts

Volt-ampere reactive

21 / 40

What is the relationship between peak-to-peak value and RMS value for an AC waveform?

RMS value divided by square root of 2

Peak-to-peak value times square root of 2

RMS value times square root of 2

22 / 40

What type of current periodically changes direction?

Transient current

Alternating current

Direct current

23 / 40

What is the period of a 60 Hz alternating current?

60 seconds

1/60 second

1/60 minute

24 / 40

What is the frequency of a 50 Hz alternating current?

50 cycles per hour

50 cycles per minute

50 cycles per second

25 / 40

What is the characteristic of an AC waveform that determines its intensity?

Amplitude

Phase

Frequency

26 / 40

What is the instrument used to measure AC current?

Ohmmeter

Ammeter

Voltmeter

27 / 40

What is the phase difference between voltage and current in a purely resistive AC circuit?

Zero degrees

90 degrees

180 degrees

28 / 40

What is the unit of frequency?

Volts

Hertz

Watts

29 / 40

What is the unit of angular frequency?

Volts

Hertz

Radians per second

30 / 40

What is the characteristic of an AC waveform that determines its time taken to complete one cycle?

Phase

Period

Frequency

31 / 40

What is the average value of an AC waveform over a complete cycle?

Peak value

RMS value

Zero

32 / 40

What is the unit of peak voltage?

Hertz

Watts

Volts

33 / 40

What is the instrument used to measure AC voltage?

Voltmeter

Ohmmeter

Ammeter

34 / 40

What is the relationship between frequency and angular frequency for an AC waveform?

Directly proportional

No relationship

Inversely proportional

35 / 40

What is the phase difference between voltage and current in a purely resistive-inductive AC circuit?

Exactly 90 degrees

Less than 90 degrees

More than 90 degrees

36 / 40

What is the frequency of AC commonly expressed in?

Hertz

Volts

Watts

37 / 40

What is the peak-to-peak value of an AC waveform?

RMS value divided by 2

RMS value times 2

Twice the peak value

38 / 40

What is the relationship between frequency and wavelength for an AC waveform?

No relationship

Inversely proportional

Directly proportional

39 / 40

What is the phase difference between voltage and current in a purely resistive-inductive-capacitive AC circuit?

180 degrees

90 degrees

Zero degrees

40 / 40

What is the RMS value of an AC waveform?

Root mean square

Average

Maximum

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adminJune 10, 2024

0 1 1 minute read