Alternating Current and Voltage - General Questions Online Exam Quiz
Alternating Current and Voltage - General Questions GK Quiz. Question and Answers related to Alternating Current and Voltage - General Questions. MCQ (Multiple Choice Questions with answers about Alternating Current and Voltage - General Questions
If the rms voltage drop across a 15 k resistor is 16 V, the peak current through the resistor is
Options
A : 15 mA
B : 1.5 mA
C : 10 mA
D : 1 mA
The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is
Options
A : 40 Hz
B : 100 Hz
C : 400 Hz
D : indeterminable
How many degrees are there in /3 rad?
Options
A : 6°
B : 60°
C : 180°
D : 27°
To produce an 800 Hz sine wave, a four-pole generator must be operated at
Options
A : 200 rps
B : 400 rps
C : 800 rps
D : 1,600 rps
One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is
Options
A : 0°
B : 45°
C : 40°
D : none of the above
If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is
Options
A : 4 V
B : 18.8 V
C : 26.6 V
D : 2.66 V
A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is
Options
A : 25%
B : 50%
C : 1%
D : 100%
A 20 kHz pulse waveform consists of pulses that are 15 s wide. The duty cycle
Options
A : is 1%
B : is 30%
C : is 100%
D : cannot be determined
If the peak of a sine wave is 13 V, the peak-to-peak value is
Options
A : 6.5 V
B : 13 V
C : 26 V
D : none of the above
A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is
Options
A : 45.12 mA
B : 16 mA
C : 39.6 mA
D : 22.6 mA
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