A. 0 Hz to 3.5 kHz
B. 0 Hz
C. 3.5 kHz
D. 7 kHz
0
An RC low-pass filter consists of a 120 Ω resistor and a 0.002 µF capacitor. The output is taken across the capacitor. The circuit’s critical frequency is___________?
0
An RL high-pass filter consists of a 470 Ω resistor and a 600 mH coil. The output is taken across the coil. The circuit’s critical frequency is___________?
A. 333 kHz
B. 633 kHz
C. 331 kHz
D. 60 kHz
0
A parallel resonant band-pass filter consists of a 90 Ω resistor in series with a parallel network made up of a 60 mH coil and a 0.02 µF capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of 20 Ω. What is the center frequency of the filter?
A. 125 Hz
B. 1,250 Hz
C. 564 Hz
D. 5,644 Hz
0
In a certain low-pass filter, fc = 3.5 kHz.if the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude?
A. 459 Hz
B. 4,591 Hz
C. 999 Hz
D. 2,176 Hz
0
The practical illustration of the phenomenon of mutual induction is____________?
A. 0 V
B. 5.97 V
C. 6 V
D. 597 mV
0
Current produced by moving the loop of wire across a magnetic field is called_____________?
A. A.C generator
B. D.C dynamo
C. induction coil
D. transformer
0
cmf generated by A.C dynamo depends upon_____________?
A. A.C current
B. D.C current
C. induced current
D. mean square current
0
A dynamo converts______________?
A. number of turns in the coil
B. magnetic field strength
C. frequency of rotation
D. all of above
0
A.C cannot be used for_______________?
A. mechanical energy into electrical energy
B. electrical energy into mechanical energy
C. magnetic energy into mechanical energy
D. magnetic energy into electrical energy
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