MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductor of the coil corresponding to a magnetizing electric current of 3 A will be? |
| A. | 37.68 μH |
| B. | 47.68 μH |
| C. | 113.04 μH |
| D. | 120.58 μH |
| Answer» D. 120.58 μH | |
| 2. |
An alternating voltage V = 150 sin(314)t is supplied to a device which offers a resistance of 20 Ω in forward direction of electric current while preventing the flow of electric current in reverse direction. The form factor is ___________ |
| A. | 0.57 |
| B. | 0.318 |
| C. | 1.414 |
| D. | 1.57 |
| Answer» E. | |
| 3. |
Potential of earth is – 50 V. If the potential difference between anode and cathode (earthed) is measured as 150 V, actual voltage on anode is __________ |
| A. | 0 V |
| B. | 100 V |
| C. | 200 V |
| D. | 250 V |
| Answer» D. 250 V | |
| 4. |
The average power delivered to the 6 Ω load in the circuit of figure below is ___________ |
| A. | 8 W |
| B. | 76.68 W |
| C. | 625 kW |
| D. | 2.50 kW |
| Answer» C. 625 kW | |
| 5. |
In the circuit given below, the value of RL for which it absorbs maximum power is ___________ |
| A. | \(\frac{400}{3}\) Ω |
| B. | \(\frac{2}{9}\) kΩ |
| C. | 350.38 Ω |
| D. | \(\frac{4}{9}\) kΩ |
| Answer» D. \(\frac{4}{9}\) kΩ | |
| 6. |
In the circuit given below, what is the amount of maximum power transfer to R? |
| A. | 56 W |
| B. | 76 W |
| C. | 60 W |
| D. | 66 W |
| Answer» E. | |
| 7. |
A 3 V DC supply with an internal resistance of 2 Ω supplies a passive non-linear resistance characterized by the relation VNL = \(I_{NL}^{2}\). The power dissipated in the resistance is ___________ |
| A. | 1 W |
| B. | 1.5 W |
| C. | 2.5 W |
| D. | 3 W |
| Answer» B. 1.5 W | |
| 8. |
In the circuit shown below what is the value of RL for which maximum power is transferred to RL? |
| A. | 2.4 Ω |
| B. | \(\frac{8}{3}\) Ω |
| C. | 4 Ω |
| D. | 6 Ω |
| Answer» D. 6 Ω | |
| 9. |
The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be _________ |
| A. | \(\frac{3}{4}\) Ω |
| B. | \(\frac{4}{3}\) Ω |
| C. | \(\frac{3}{2}\) Ω |
| D. | 6 Ω |
| Answer» C. \(\frac{3}{2}\) Ω | |
| 10. |
In the circuit given below, the value of the maximum power transferred through RL is ___________ |
| A. | 0.75 W |
| B. | 1.5 W |
| C. | 2.25 W |
| D. | 1.125 W |
| Answer» B. 1.5 W | |