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- Question
In a parallel circuit, the branch with the lowest resistance has the most current.
Options- A. True
- B. False
- Correct Answer
- True
- 1. A 12 Ω resistor, a 40 µF capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is
Options- A. 28.1 Hz
- B. 281 Hz
- C. 2,810 Hz
- D. 10 kHz Discuss
- 2. Three 10 kΩ resistors are connected in series. A 20 kΩ resistor is connected in parallel across one of the 10 kΩ resistors. The voltage source is 24 V. The total current in the circuit is
Options- A. 900 µA
- B. 9 mA
- C. 90 mA
- D. 800 µA Discuss
- 3. The voltages in Problem 5 are measured at a certain frequency. To make the resistor voltage less than the inductor voltage, the frequency is
Options- A. increased
- B. decreased
- C. doubled
- D. not a factor Discuss
- 4. The current in a given circuit is not to exceed 24 A. Which value of fuse is best?
Options- A. a fuse is not necessary
- B. 10 A
- C. 24 A
- D. 20 A Discuss
- 5. A 120 Ω resistor is in parallel with a capacitor with a capacitive reactance of 40 Ω. Both components are across a 12 V ac source. What is the magnitude of the total impedance?
Options- A. 37.9 Ω
- B. 3.7 Ω
- C. 14,400 Ω
- D. 4,800 Ω Discuss
- 6. A 12 mA current source has an internal resistance, RS, of 1.2 kΩ. The equivalent voltage source is
Options- A. 144 V
- B. 14.4 V
- C. 7.2 V
- D. 72 mV Discuss
- 7. Total power in a parallel circuit is found by adding up the power of all the individual resistors.
Options- A. True
- B. False Discuss
- 8. Referring to Problem 23, what will the output voltage be if the coil's internal resistance is neglected?
Options- A. 0 V
- B. 200 mV
- C. 11.1 mV
- D. 111 mV Discuss
- 9. When the current through an inductor decreases, the amount of energy stored in the electromagnetic field
Options- A. increases
- B. decreases
- C. remains the same
- D. doubles Discuss
- 10. When a load resistance is removed from the output of a voltage divider circuit, the current drawn from the source
Options- A. decreases
- B. increases
- C. remains the same
- D. is cut off Discuss
More questions
Correct Answer: 281 Hz
Correct Answer: 900 µA
Correct Answer: increased
Correct Answer: 24 A
Correct Answer: 37.9 Ω
Correct Answer: 14.4 V
Correct Answer: True
Correct Answer: 0 V
Correct Answer: decreases
Correct Answer: decreases
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