Discussion
Home ‣ Electrical Engineering ‣ Parallel Circuits See What Others Are Saying!
- Question
When a 1.6 kΩ resistor and a 120 Ω resistor are connected in parallel, the total resistance is
Options- A. greater than 1.6 kΩ
- B. greater than 120 Ω but less than 1.6 kΩ
- C. less than 120 Ω but greater than 100 Ω
- D. less than 100 Ω
- Correct Answer
- less than 120 Ω but greater than 100 Ω
- 1. What is the flux density when the flux is 5.5 µWb and the cross-sectional area is 6 × 10?3 m2?
Options- A. 91.7 µT
- B. 917 µT
- C. 91 T
- D. 9.7 T Discuss
- 2. Two 6 V batteries are connected series aiding across two 1.2 kΩ resistors in series. Current through each resistor is
Options- A. 5 mA
- B. 10 mA
- C. 0 A
- D. 2.5 mA Discuss
- 3. The number 0.0003 multiplied by 10-3 is
Options- A. 0.0000003
- B. 0.0003
- C. 3
- D. 3,000 Discuss
- 4. A multimeter measures
Options- A. current
- B. voltage
- C. resistance
- D. current, voltage, and resistance Discuss
- 5. Eighteen thousand watts is the same as
Options- A. 18 mW
- B. 18 MW
- C. 18 kW
- D. 18 µW Discuss
- 6. A 12 kΩ resistor, a 15 kΩ resistor, and a 22 kΩ resistor are in series with two 10 kΩ resistors that are in parallel. The source voltage is 75 V. Current through the 15 kΩ resistor is approximately
Options- A. 14 mA
- B. 1.4 mA
- C. 5 mA
- D. 50 mA Discuss
- 7. Three 680 Ω resistors are connected in series with a 470 V source. Current in the circuit is
Options- A. 69 mA
- B. 230 mA
- C. 23 mA
- D. 690 mA Discuss
- 8. When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
Options- A. overheated
- B. shorted
- C. open
- D. reversed Discuss
- 9. A 2 kΩ resistor is in series with a 0.015 µF capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle?
Options- A. 73.4 Ω and ? = ?19.5°
- B. 707 Ω and ? = ?19.5°
- C. 2121 Ω and ? = ?19.5°
- D. 734 Ω and ? = ?38.9° Discuss
- 10. A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is
Options- A. 55 mH
- B. less than 0.2 mH
- C. less than 5.5 mH
- D. 5.5 mH Discuss
More questions
Correct Answer: 917 µT
Correct Answer: 5 mA
Correct Answer: 0.0000003
Correct Answer: current, voltage, and resistance
Correct Answer: 18 kW
Correct Answer: 1.4 mA
Correct Answer: 230 mA
Correct Answer: shorted
Correct Answer: 2121 Ω and ? = ?19.5°
Explanation:
Xc = 1/2?fC = 707 ?
Z = R - jXc = 2000 - j(707)
|z| = sqrt(R*R + Xc*Xc) = 2121 ?
Phase angle = arctangent(Xc/R) = 19.5°
Correct Answer: 5.5 mH
Comments
There are no comments.More in Electrical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.