Discussion
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- Question
A step-up transformer steps up power.
Options- A. True
- B. False
- Correct Answer
- False
- 1. What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary?
Options- A. 0.4
- B. 4
- C. 9.6
- D. 0.96 Discuss
- 2. Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.
Options- A. True
- B. False Discuss
- 3. A resistor ladder network is a special type of series-parallel circuit.
Options- A. True
- B. False Discuss
- 4. In a certain series resonant circuit, VC = 125 V, VL = 125 V, and VR = 40 V. The value of the source voltage is
Options- A. 125 V
- B. 250 V
- C. 290 V
- D. 40 V Discuss
- 5. One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.
Options- A. True
- B. False Discuss
- 6. A 75 Ω load uses 2 W of power. The output voltage of the power supply is approximately
Options- A. 120 V
- B. 1.2 V
- C. 12 V
- D. 6 V Discuss
- 7. A 2 kΩ resistor and a 0.002 µF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is
Options- A. 84.5 mW
- B. 845 mW
- C. 13 mW
- D. 130 mW Discuss
- 8. Three 15 mH inductors are in series. The total inductance is
Options- A. 15 mH
- B. 30 mH
- C. 45 mH
- D. 5 mH Discuss
- 9. A parallel circuit acts as a current divider.
Options- A. True
- B. False Discuss
- 10. A capacitor blocks ac but passes dc.
Options- A. True
- B. False Discuss
More questions
Correct Answer: 0.96
Correct Answer: False
Correct Answer: True
Correct Answer: 40 V
Correct Answer: False
Correct Answer: 12 V
Correct Answer: 84.5 mW
Correct Answer: 45 mH
Correct Answer: True
Correct Answer: False
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