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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Network Theory (Electric Circuits)  >  Test: Series-Parallel Interconnection of Two Port Network - Electrical Engineering (EE) MCQ

Test: Series-Parallel Interconnection of Two Port Network - Electrical Engineering (EE) MCQ


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15 Questions MCQ Test Network Theory (Electric Circuits) - Test: Series-Parallel Interconnection of Two Port Network

Test: Series-Parallel Interconnection of Two Port Network for Electrical Engineering (EE) 2024 is part of Network Theory (Electric Circuits) preparation. The Test: Series-Parallel Interconnection of Two Port Network questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Series-Parallel Interconnection of Two Port Network MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Series-Parallel Interconnection of Two Port Network below.
Solutions of Test: Series-Parallel Interconnection of Two Port Network questions in English are available as part of our Network Theory (Electric Circuits) for Electrical Engineering (EE) & Test: Series-Parallel Interconnection of Two Port Network solutions in Hindi for Network Theory (Electric Circuits) course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Series-Parallel Interconnection of Two Port Network | 15 questions in 45 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study Network Theory (Electric Circuits) for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Series-Parallel Interconnection of Two Port Network - Question 1
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For the circuit given below, the value of z21 parameter is ____________

Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 1



Test: Series-Parallel Interconnection of Two Port Network - Question 2
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Consider a cube having resistance R on each of its sides. For this non-planar graph, the number of independent loop equations are _______________

Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 2

We know that the number of equations is given by,
L = B – N + 1
Where, B = Number of Branches, N = Number of Nodes
Here, B = 12 and N = 8.
So, L = 12 – 8 + 1 = 5.

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Test: Series-Parallel Interconnection of Two Port Network - Question 3
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Consider a series RL circuit in which current 12 A is flowing through R and current 16 A is flowing through L. The current supplied by the sinusoidal current source I is ____________

Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 3

Current I (t) is given by,

Test: Series-Parallel Interconnection of Two Port Network - Question 4
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Two coils X and Y have self-inductances of 5 mH and 10 mH and mutual inductance of 3 mH. If the current in coils X change at a steady rate of 100 A/s, the emf induced in coil Y is ____________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 4

The emf is given by,

Hence, the emf induced in coil Y is given by 0.3 V.

Test: Series-Parallel Interconnection of Two Port Network - Question 5
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The Thevenin’s equivalent of a network is a 10 V source in series with 2 Ω resistances. If a 3 Ω resistance is connected across the Thevenin’s equivalent is _____________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 5

The Thevenin equivalent voltage is given by,

And the Thevenin equivalent Resistance is given by,

Test: Series-Parallel Interconnection of Two Port Network - Question 6
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A parallel RLC circuit with R1 = 20, L1 = 1/100 and C1 = 1/200 is scaled giving R2 = 104, L2 = 10-4 and C2, the value of C2 is ___________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 6


Test: Series-Parallel Interconnection of Two Port Network - Question 7
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Consider an RL series circuit having resistance R = 3 Ω, inductance L = 3 H and is excited by 6V. The current after a long time after closing of switch is ____________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 7

At t = ∞ the circuit has effectively two 6Ω resistances in parallel

Given voltage = 6 V
So, current = 2 A.

Test: Series-Parallel Interconnection of Two Port Network - Question 8
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For the circuit given below, the value of z11 parameter is ____________.
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 8

Answer: a
Explanation: z12 = j6 = z21
z11 – z12 = 4
Or, z11 = z12 + 4 = 4 + j6 Ω
And z22 – z12 = -j10
Or, z22 = z12 + -j10 = -j4 Ω
∴ [z] = [4+j6:j6; j6:-j4] Ω.

Test: Series-Parallel Interconnection of Two Port Network - Question 9
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Given two voltages, 50 ∠0 V and 75 ∠- 60° V. The sum of these voltages is ___________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 9

The voltages can be written in the form,
50 + j 0.75∠-60°
= 37.5 – j 64.95
So, sum = (50 + 37.5) – j 64.95
= 87.5 – j 64.95 = 109∠-36.6°.

Test: Series-Parallel Interconnection of Two Port Network - Question 10
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Consider a circuit having resistances 16 Ω and 30 Ωis excited by a voltage V. A variable resistance R is connected across the 16 Ω resistance. The power dissipated in 30 Ω resistance will be maximum when value of R is __________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 10

We know that,
When R = 0, circuit current = V/30A
And Power dissipated = V2/30 Watts.
This is the maximum possible value which occurs for R = 0 Ω.

Test: Series-Parallel Interconnection of Two Port Network - Question 11
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A 50 Hz current has an amplitude of 25 A. The rate of change of current at t = 0.005 after i = 0 and is increasing is ____________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 11

The current i (t) is given by,
i = 25 sin 314.16 t and di/dt = 250 X 314.16 cos⁡ωt
Now, at t = 0.005, I = 25 X 314.16 cos (314.16 X 0.005)
= 0.

Test: Series-Parallel Interconnection of Two Port Network - Question 12
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A magnetic circuit has an iron length of 100 cm and air gap length 10 cm. If μr = 200 then which of the following is true?
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 12

We know that, MMF for air

Where B is the magnetic field intensity.

Test: Series-Parallel Interconnection of Two Port Network - Question 13
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Barletts Bisection Theorem is applicable to ___________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 13

A symmetrical network can be split into two halves. So the z parameters of the network are symmetrical as well as reciprocal of each other. Hence Barletts Bisection Theorem is applicable to Symmetrical networks.

Test: Series-Parallel Interconnection of Two Port Network - Question 14
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The energy stored in a coil is 108 J. The power dissipated instantaneously across the blades of switch after it is opened in 10 ms is ____________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 14

Power dissipated instantaneously across the blades of the switch is given by,

Given that, Energy = 108 J and time = 10 X 10-3

Test: Series-Parallel Interconnection of Two Port Network - Question 15
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If the diameter of a wire is doubled, the current carrying capacity of the wire is ___________
Detailed Solution for Test: Series-Parallel Interconnection of Two Port Network - Question 15

Since diameter is doubled, area of cross-section becomes four times. Current carrying capacity is proportional to area of cross-section.

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