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- Question
If a current of 40 mA flows through a series circuit consisting of a 0.4 µF capacitor and a resistor in series with a 4 kHz, 40 Vac source, what is the total circuit impedance?
Options- A. 10 Ω
- B. 100 Ω
- C. 1 k Ω
- D. 1 M Ω
- Correct Answer
- 1 k Ω
- 1. An AND gate and two INVERTERs can be connected to act as a basic decoder.
Options- A. True
- B. False Discuss
- 2. The basic difference between a fuse and a circuit breaker is
Options- A. a fuse is slower
- B. a fuse is reusable
- C. a circuit breaker is reusable
- D. a circuit breaker is more reliable Discuss
- 3. A JFET is very similar to a BJT.
Options- A. True
- B. False Discuss
- 4. The current flowing through an unloaded voltage divider is called the:
Options- A. resistor current
- B. load current
- C. bleeder current
- D. voltage current Discuss
- 5. A practical inductor
Options- A. has inductance
- B. has winding resistance
- C. has winding capacitance
- D. all of the above Discuss
- 6. A silicon-controlled rectifier (SCR) has 3 terminals labeled base, collector, and emitter.
Options- A. True
- B. False Discuss
- 7. Magnetic force is the force that produces a magnetic field.
Options- A. True
- B. False Discuss
- 8. An ohmmeter can be used to test a capacitor.
Options- A. True
- B. False Discuss
- 9. When checking a diode, low resistance readings both ways indicate the diode is:
Options- A. open
- B. satisfactory
- C. faulty
- D. not the problem Discuss
- 10.
Calculate the duty cycle of the repetitive pulse waveform in the given circuit.
Options- A. 8.33%
- B. 0%
- C. 33.33%
- D. 25% Discuss
More questions
Correct Answer: True
Correct Answer: a circuit breaker is reusable
Correct Answer: False
Correct Answer: bleeder current
Correct Answer: all of the above
Correct Answer: False
Correct Answer: True
Correct Answer: True
Correct Answer: faulty
Correct Answer: 25%
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