MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 11 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. |
A voltage is defined by \(v(t)=\begin{cases}0\\2t\\4e^{-(t-2)}\\\end{cases} \) for \(\begin{cases}t < 0 \\0
|
| A. | i = 0 for t < 0 |
| B. | i = 20µA for 0 < t < 2s |
| C. | i = 40et-2µA for t > 2s |
| D. | i = -40et-2µA for t > 2s |
| Answer» D. i = -40et-2µA for t > 2s | |
| 2. |
Which of the following is not the energy stored in a capacitor? |
| A. | \(\frac{CV^2}{2}\) |
| B. | \(\frac{QV}{2}\) |
| C. | \(\frac{Q^2}{2C}\) |
| D. | \(\frac{QC}{2}\) |
| Answer» E. | |
| 3. |
The capacitance of a capacitor does not depend on the absolute permittivity of the medium between the plates. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
An inductor of 3mH has a current i = 5(1 – e-5000t). Find the corresponding maximum energy stored. |
| A. | 37.5 mJ |
| B. | 375 J |
| C. | 37.5 kJ |
| D. | 3.75 mJ |
| Answer» B. 375 J | |
| 5. |
Energy stored in an inductor is ________ |
| A. | LI |
| B. | LI2 |
| C. | LI/2 |
| D. | LI2/2 |
| Answer» E. | |
| 6. |
Inductance of an inductor is inversely proportional to its ___________ |
| A. | Number of turns |
| B. | Area of cross section |
| C. | Absolute permeability |
| D. | Length |
| Answer» E. | |
| 7. |
Unit of inductance is ________ |
| A. | Weber |
| B. | Henry |
| C. | Farad |
| D. | Tesla |
| Answer» C. Farad | |
| 8. |
A 25 Ω resistor has a voltage of 150 sin377 t. Find the corresponding power. |
| A. | 900 sin2 337 t |
| B. | 90 sin2 337 t |
| C. | 900 sin2 377 t |
| D. | 9 sin2 337 t |
| Answer» D. 9 sin2 337 t | |
| 9. |
Resistance depends on the temperature of the conductor. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
A conductor is said to have resistance of one ohm if a potential difference of one volt across its terminals causes a current of X ampere to flow through it. What will be the value of X? |
| A. | 4 |
| B. | 2 |
| C. | 3 |
| D. | 1 |
| Answer» E. | |
| 11. |
Energy per unit charge is ____________ |
| A. | Power |
| B. | Voltage |
| C. | Current |
| D. | Capacitance |
| Answer» C. Current | |