1. Two linear capacitors C1 (with an initial voltage of zero across it) and C2, (with V volts across it initially) and a resistor R are wired into a series circuit which is closed at t = 0.
2. The following arrangement consists of an ideal transformer and an attenuator which attenuates by a factor of 0.8. An AC Voltage VWX1 = 100 V is applied across WX to get an open circuit voltage VYZ1 across YZ. Next, an ac voltage VYZ2 = 100 V is applied across YZ to get open circuit voltage VWX2 across WX. Then, $$\frac{{{{\text{V}}_{{\text{Y}}{{\text{Z}}_1}}}}}{{{{\text{V}}_{{\text{W}}{{\text{X}}_1}}}}},\,\frac{{{{\text{V}}_{{\text{W}}{{\text{X}}_2}}}}}{{{{\text{V}}_{{\text{Y}}{{\text{Z}}_2}}}}}$$ are respectively
3. In the circuit shown below, the current I is
4. The current i through the 1 Ω resistor shown in figure below is:
5. When L is doubled and C is halved, the resonance frequency of series tuned circuit becomes
6. Consider the following statements for a symmetrical T section
1. Z11 and Z22 are equal
2. Z12 and Z21 are equal
3. Z11 and Z12 are equal
4. Z21 and Z22 are equal
Which of these statements are correct?
1. Z11 and Z22 are equal
2. Z12 and Z21 are equal
3. Z11 and Z12 are equal
4. Z21 and Z22 are equal
Which of these statements are correct?
7. Determine Y12 for the above circuit.
8. What is the Thevenin resistance seen from the terminals AB of the circuit shown in the figure below?
9. After a capacitor has charged for 1 ms, what percentage of current remains in the capacitor
10. In the circuit shown, 2-port network N has Z11 = 103 Ω, Z12 = 10 Ω, Z21 = -106 Ω and Z22 = 104 Ω. The current gain $$\frac{{{{\text{I}}_2}}}{{{{\text{I}}_1}}}$$ is
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