MCQOPTIONS
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MCQOPTIONS
This section includes 61 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is%! |
| A. | Good |
| B. | Open |
| C. | Shorted |
| D. | Partly shorted |
| Answer» D. Partly shorted | |
| 52. |
A 320 µH coil is in series with a 3.3 kΩ resistor. How long does it take for current to build up to its full value?%! |
| A. | 0.48 s |
| B. | 0.48 ms |
| C. | 0.48 µs |
| D. | 48 s |
| Answer» D. 48 s | |
| 53. |
*$_A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is? |
| A. | 55 mH |
| B. | Less than 0.2 mH |
| C. | Less than 5.5 mH |
| D. | 5.5 mH |
| Answer» E. | |
| 54. |
*$_The voltage across a coil when di/dt = 20 mA/µs and L = 8 µH is? |
| A. | 16 mV |
| B. | 160 mV |
| C. | 1.6 mV |
| D. | 2.5 mV |
| Answer» C. 1.6 mV | |
| 55. |
%_Five inductors are connected in series. The lowest value is 8 µH. If the value of each inductor is twice that of the preceding one, and if the inductors are connected in order of ascending values, the total inductance is_% |
| A. | 8 H |
| B. | 32 µH |
| C. | 64 µH |
| D. | 248 µH |
| Answer» E. | |
| 56. |
_ An inductance of 0.43 mH is smaller than$? |
| A. | 43 µH |
| B. | 430 µH |
| C. | 0.05 H |
| D. | 0.00043 H |
| Answer» D. 0.00043 H | |
| 57. |
__An inductor, a 1 kΩ resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is__ |
| A. | 0 V |
| B. | 6 V |
| C. | 12 V |
| D. | 4 V |
| Answer» C. 12 V | |
| 58. |
_An inductance of 0.08 µH is larger than$? |
| A. | 0.0000008 H |
| B. | 0.000000008 H |
| C. | 0.000008 H |
| D. | 0.00008 mH |
| Answer» C. 0.000008 H | |
| 59. |
An 18 V power supply is connected across a coil with a winding resistance of 180 Ω. Current flow in the coil is$? |
| A. | 1 mA |
| B. | 10 mA |
| C. | 100 mA |
| D. | 1 A |
| Answer» D. 1 A | |
| 60. |
An 18 V power supply is connected across a coil with a winding resistance of 180 Ω. Current flow in the coil is? |
| A. | 1 mA |
| B. | 10 mA |
| C. | 100 mA |
| D. | 1 A |
| Answer» D. 1 A | |
| 61. |
Three 15 mH inductors are in series. The total inductance is? |
| A. | 15 mH |
| B. | 30 mH |
| C. | 45 mH |
| D. | 5 mH |
| Answer» D. 5 mH | |