STUPIDSID
1 (a)
Find Ix.
Ix is current through 5 ohm resistance flowing towards the node.
Ix is current through 5 ohm resistance flowing towards the node.
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1 (b)
Find i(O-), i(O+) for the network shown below.
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1 (c)
Find Z21 for the network.
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1 (d)
Check the positive realness of the following functions.
F(s)=S2+2s+4
F(s)=S2+2S/(s2+1).
F(s)=S2+2s+4
F(s)=S2+2S/(s2+1).
5 M
2 (a)
Find current I2 using mesh analysis.
10 M
2 (b)
For the graph shown, write incidence matrix, tieset matrix and f-cutset matrix.
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3 (a)
In the network shown, steady state is reached with switch open. At t=0, the switch is closed. For the elements values given, set the values of.
Va(O-), Vb(O-) & Va+), Vb(O+).
resistance value is 10 ohms and Inductor value is 2H; point a and point b are on two sides of 20 ohms branch (point a above the switch and point b above the inductor).
Va(O-), Vb(O-) & Va+), Vb(O+).
resistance value is 10 ohms and Inductor value is 2H; point a and point b are on two sides of 20 ohms branch (point a above the switch and point b above the inductor).
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3 (b)
Find current in 20Ω branch using thevenin's theorem.
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4 (a)
For the shown circuit switch is moved from a to b det i(t) and Vc(t).
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4 (b)
Obtain z parameters for the network shown.
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5 (a)
State and explain properties of Hurwitz polynomial.
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5 (b)
State whether the polynomials are Hurwitz.
i) P(S)=S3+2S2+4S+2
ii) P(S)=S4+3S3+4S2+2S+3
iii) P(S)=S5+2S3+3.
i) P(S)=S3+2S2+4S+2
ii) P(S)=S4+3S3+4S2+2S+3
iii) P(S)=S5+2S3+3.
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5 (c)
\[ \text{Det. }Vc(O^+), i_1(O^+) \dfrac {di_1}{dt}(O^+) \text{ and } \dfrac {di_2}{dt} (O^+) \text{ for the circuit} \]
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6 (a)
Synthesize the following function in Foster I and Foster II. \[ z(s) = \dfrac {6S^4+42S^2 + 48}{S^2+18S^3+ 48S} \]
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6 (b)
\[ \text {Cal for the }\dfrac {V_2}{V_1}, \dfrac {I_2}{I_1}, \dfrac {V_1}{I_1}, \dfrac {V_2}{I_1} \text { for the.} \]
10 M
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