MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
Two resistances 100 5 and 150 15 are connected in series. If the error is specified as standard deviations, the resultant error will be ________________ |
| A. | 10 |
| B. | 10.6 |
| C. | 15.8 |
| D. | 20 |
| Answer» D. 20 | |
| 2. |
A series RLC circuit has R = 10 , |XL| = 20 and |XC| = 20 is connected across an AC supply of 200 Vrms. The RMS voltage across the capacitor is ____________ |
| A. | 200 -90 V |
| B. | 200 90 V |
| C. | 400 90 V |
| D. | 400 -90 V |
| Answer» E. | |
| 3. |
A circuit resonates at 1 MHz It also has a Q of 100. Bandwidth between half power points is _____________ |
| A. | 10 kHz |
| B. | 100 kHz |
| C. | 10 Hz |
| D. | 100 Hz |
| Answer» B. 100 kHz | |
| 4. |
A parallel resonant circuit has a midband admittance of 20 10-3 S, quality factor of 60 and a resonance frequency of 200 k rad/s. The value of R is _____________ |
| A. | 50 |
| B. | 56.57 |
| C. | 80 |
| D. | 28.28 |
| Answer» B. 56.57 | |
| 5. |
The maximum value of mutual inductance of 2 inductively coupled coils with self inductance LA = 49 mH and LB = 81 mH is ______________ |
| A. | 130 mH |
| B. | 63 mH |
| C. | 32 mH |
| D. | 3969 mH |
| Answer» C. 32 mH | |
| 6. |
For 2 coupled inductors LA and LB, their mutual inductance MLALB satisfies ____________ |
| A. | M<sub>LALB</sub> = ( sqrt{L_A^2 + L_B^2} ) |
| B. | M<sub>LALB</sub> > ( frac{(L_A + L_B)}{2} ) |
| C. | M<sub>LALB</sub> > ( sqrt{L_A L_B} ) |
| D. | M<sub>LALB</sub> ( sqrt{L_A L_B} ) |
| Answer» E. | |
| 7. |
When two coupled coils of equal self-inductance are connected in series in one way the net inductance is 20 mH and when they are connected in the other way, the net inductance is 12 mH. The maximum value of net inductance when they are connected in parallel is __________ |
| A. | 2 mH |
| B. | 5 mH |
| C. | 4 mH |
| D. | 6 mH |
| Answer» C. 4 mH | |
| 8. |
Two coils are having self-inductance of 5 mH and 10 mH and a mutual inductance of 0.5 mH in a differential connection. The equivalent inductance of the combination is ___________ |
| A. | 14 mH |
| B. | 5.85 mH |
| C. | 6 mH |
| D. | 6.15 mH |
| Answer» B. 5.85 mH | |