Networks Analysis and Synthesis - Section 1 (1)
Networks Analysis and Synthesis - Section 1
| 2. | In figure, the current supplied by battery immediately after switching on the circuit is |
|||||||
Answer: Option A Explanation: At t = 0, inductance behaves as open circuit. |
| 3. | The current wave shape shown in figure (1) is applied to a circuit element. The voltage across the element is shown in figure (2). The element is
|
|||||||
Answer: Option C Explanation: When a current pulse is applied to a capacitor the voltage rises linearly and becomes constant at the end of pulse. |
| 4. | A capacitor is needed for an ac circuit of 230 V, 50 Hz the peak voltage rating of the capacitor should be
|
|||||||
Answer: Option C Explanation: Peak voltage rating = √2 (rms voltage rating). |
| 5. | A sinusoidal voltage has peak to peak value of 100 V. The rms value is |
|||||||
|
= 35.35 V.| 6. | As compared to the number of network elements in Brune synthesis, the number of network elements Bott-and Duffin in realization is |
|||||||
Answer: Option A Explanation: To avoid mutually coupled inductors, more elements are needed. |
| 7. | The impedance matrices of two, two-port network are given by |
|||||||
Answer: Option B Explanation: Impedance matrices will be added. |
and 
If these two networks are connected in series, the impedance matrix of the resulting two-port network will be
| 8. | A two branch parallel circuit has a 20 Ω resistance and 1 H inductance in one branch and a 100 μF capacitor in the second branch. It is fed from 100 V ac supply, at resonance, the input impedance of the circuit is |
|||||||
|
