Voltage and Current Values of a Sine Wave MCQ’s

Electronics & Communication Engineering Network Theory

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Voltage and Current Values of a Sine Wave”.

1. Find the instantaneous value at 90⁰ point of the sine wave if the wave is shifted by 45⁰.
a) 5.66
b) 6.66
c) 7.66
d) 8.66

2. The value of the sine wave at some particular instant is called?
a) peak value
b) peak to peak value
c) instantaneous value
d) average value

3. Find the instantaneous value of the sine value at 90⁰ point having an amplitude 10V and time period 360⁰.
a) 5
b) 10
c) 15
d) 20

4. The maximum value of the wave during a positive half cycle or maximum value of the wave during negative cycle is called?
a) instantaneous value
b) peak value
c) peak to peak value
d) average value

5. The value from positive to negative peak of the sine wave is called?
a) effective value
b) average value
c) peak value
d) peak to peak value

6. A wire is carrying a direct current of 20A and a sinusoidal alternating current of peak value 20A. Find the rms value of the resultant current.
a) 24
b) 24.5
c) 25
d) 25.5

7. The total area under the complete curve divided by the distance of the curve is called?
a) peak to peak value
b) RMS value
c) average value
d) effective value

8. The RMS value of sine wave is?
a) 0.707Vp
b) 0.607Vp
c) 0.807Vp
d) 0.907Vp

9. The peak factor of the sinusoidal waveform is?
a) 4
b) 2
c) 1.414
d) 8

10. The form factor of the sinusoidal waveform is?
a) 1.11
b) 2.22
c) 3.33
d) 4.44

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