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**Quiz Description** :

**Name: **Alternating Current and Voltage Mcq Quiz : Electrical and Electronics

**Subject: **Basic of Electrical Engineering

**Topic: **Alternating Current and Voltage

**Questions: **20 objective type

**Time Allowed: **20 minutes

**Important for: **Electrical Engineering, Electronics Engineering, Robotics Engineering students and professional for University exam, GATE and Public Sector Job written test.

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- Answered
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- Question 1 of 20
##### 1. Question

1 pointsOne sine wave has a period of 2ms, another has a period of 5ms, and other has a period of 10ms. Which sine wave is changing at a faster rate?

CorrectIncorrect - Question 2 of 20
##### 2. Question

1 pointsHow many cycles does a sine wave go through in 10s when its frequency is 60 Hz?

CorrectIncorrect - Question 3 of 20
##### 3. Question

1 pointsIf the peak value of a certain sine wave voltage is 10V, what is the peak to peak value?

CorrectIncorrect - Question 4 of 20
##### 4. Question

1 pointsIf the peak value of a certain sine wave voltage is 5V, what is the rms value?

CorrectIncorrect - Question 5 of 20
##### 5. Question

1 pointsWhat is the average value of a sine wave over a full cycle?

CorrectIncorrect - Question 6 of 20
##### 6. Question

1 pointsA sinusoidal current has peak value of 12A. What is its average value?

CorrectIncorrect - Question 7 of 20
##### 7. Question

1 pointsSine wave A has a positive going zero crossing at 30°. Sine wave B has a positive going zero crossing at 45°. What is the phase angle between two signals?

CorrectIncorrect - Question 8 of 20
##### 8. Question

1 pointsA sine wave has a positive going zero crossing at 0°and an rms value of 20V. What is its instantaneous value at 145°.

CorrectIncorrect - Question 9 of 20
##### 9. Question

1 pointsIn a pure resistor, the voltage and current are

CorrectIncorrect - Question 10 of 20
##### 10. Question

1 pointsThe rms current through a 10kΩ resistance is 5mA. What is the rms voltage drop across the resistor?

CorrectIncorrect - Question 11 of 20
##### 11. Question

1 pointsIn a pure capacitor, the voltage

CorrectIncorrect - Question 12 of 20
##### 12. Question

1 pointsA sine wave voltage is applied across a capacitor, when the frequency of the voltage is increased, the current

CorrectIncorrect - Question 13 of 20
##### 13. Question

1 pointsThe current in a pure inductor

CorrectIncorrect - Question 14 of 20
##### 14. Question

1 pointsA sine wave voltage is applied across an inductor; when the frequency of voltage is increased, the current

CorrectIncorrect - Question 15 of 20
##### 15. Question

1 pointsThe rms value of the voltage for a voltage function

*v = 10 + 5 cos (628t + 30°)*volts through a circuit isCorrectIncorrect - Question 16 of 20
##### 16. Question

1 pointsFor the same peak value, which is of the following wave will have the highest rms value

CorrectIncorrect - Question 17 of 20
##### 17. Question

1 pointsFor 100 volts rms value triangular wave, the peak voltage will be

CorrectIncorrect - Question 18 of 20
##### 18. Question

1 pointsThe form factor of dc voltage is

CorrectIncorrect - Question 19 of 20
##### 19. Question

1 pointsThe power consumed in a circuit element will be least when the phase difference between the current and voltage is

CorrectIncorrect - Question 20 of 20
##### 20. Question

1 pointsThe voltage wave consists of two components: a 50V dc component and a sinusoidal component with a maximum value of 50 volts. The average value of the resultant will be

CorrectIncorrect