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GATE EC : Networks Champion Quiz 1

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Question 1

A practical current source is usually represented by

Question 2

The approximate equivalent resistance at the points X₁ and X₂ in the circuit shown below

Question 3

Consider the network graph shown in figure. Which one of the following is NOT a ‘tree’ of this graph?
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Question 4

If R₁ = R₂ = R₄=R and R₃ = 1.1R in the bridge circuit shown in figure, then the reading in the ideal voltmeter connected between a and b is
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Question 5

Equivalent Resistance between X and Y is

Question 6

A negative resistance R_neg is connected to a passive network N having driving point impedance Z₁(s) as shown below. For Z₂(s) to be positive real,

Question 7

A network N consists of resistors, independent voltage and current sources. The value of its determinant based on the loop analysis:
1) cannot be negative
2) cannot be zero
3) is independent of the values of voltage and current sources.
4) dependent on the values of the resistances and the voltage and current sources

Question 8

A Y-network has resistances of 10Ω each in two of its arms, while the third arm has a resistance of 11Ω. In the equivalent ∆-network, the lowest value (in Ω) among the three resistances is ________.

Question 9

The resistance of a parallel circuit consisting of two resistors is 12 Ω. One of the resistance wires breaks and the effective resistance becomes 18 Ω. The resistance of the broken wire is

Question 10

The total number of branches in a network is equal to b. The graph of the network has n number of branches. The minimum number of line current is

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ESE & GATE EC Network Theory

Jun 24ESE & GATE EC