MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The resistance of a thermistor decreases with increases in __________ |
| A. | temperature |
| B. | circuit |
| C. | light control |
| D. | sensors |
| Answer» C. light control | |
| 2. |
If A = 3 + j1, then A4 is equal to __________ |
| A. | 3.16 18.4 |
| B. | 100 73.72 |
| C. | 100 18.4 |
| D. | 3.16 73.22 |
| Answer» C. 100 18.4 | |
| 3. |
For making a capacitor, the dielectric should have __________ |
| A. | High relative permittivity |
| B. | Low relative permittivity |
| C. | Relative permittivity = 1 |
| D. | Relative permittivity neither too high nor too low |
| Answer» B. Low relative permittivity | |
| 4. |
If operator a = 1 120 . Then (1 a) is equal to ____________ |
| A. | ( sqrt{3} ) |
| B. | ( sqrt{3} ) -30 |
| C. | ( sqrt{3} ) 30 |
| D. | ( sqrt{3} ) 60 |
| Answer» C. ( sqrt{3} ) 30 | |
| 5. |
A 1 F capacitor is connected to 12 V batteries. The energy stored in the capacitor is _____________ |
| A. | 12 x 10<sup>-6</sup> J |
| B. | 24 x 10<sup>-6</sup> J |
| C. | 60 x 10<sup>-6</sup> J |
| D. | 72 x 10<sup>-6</sup> J |
| Answer» E. | |
| 6. |
A two branch circuit has a coil of resistance R1, inductance L1 in one branch and capacitance C2 in the second branch. If R is increased, the dynamic resistance is going to ___________ |
| A. | Increase |
| B. | Decrease |
| C. | Remains constant |
| D. | May increase or decrease |
| Answer» C. Remains constant | |
| 7. |
D is the distance between the plates of a parallel plate capacitor. The dielectric constants are 1 and 2 respectively. The total capacitance is proportional to ____________ |
| A. | ( frac{ _1 _2}{ _1+ _2} ) |
| B. | <sub>1</sub> <sub>2</sub> |
| C. | ( frac{ _1}{ _2} ) |
| D. | <sub>1</sub> <sub>2</sub> |
| Answer» B. <sub>1</sub> <sub>2</sub> | |
| 8. |
A capacitor, used for power factor correction in a single phase circuit decreases which of the following? |
| A. | Power factor |
| B. | Line current |
| C. | Both Line current and Power factor |
| D. | Neither Line current nor Power factor |
| Answer» C. Both Line current and Power factor | |
| 9. |
Branch current and loop current relation is expressed in matrix form shown below, where Ij represents branch current and Ik represents loop current.[I1; I2; I3; I4; I5; I6; I7; I8] = [0 0 1 0; -1 -1 -1 0; 0 1 0 0; 1 0 0 0; 0 0 -1 -1; 1 1 0 -1; 1 0 0 0; 0 0 0 1] [I1; I2; I3; I4]The rank of the incidence matrix is? |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 8 |
| Answer» B. 5 | |