All Courses
Get the App Signup / Login
Sign in Open App
Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Test: Problems on Initial Conditions - Electrical Engineering (EE) MCQ

Test: Problems on Initial Conditions - Electrical Engineering (EE) MCQ


Test Description

10 Questions MCQ Test - Test: Problems on Initial Conditions

Test: Problems on Initial Conditions for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Problems on Initial Conditions questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Problems on Initial Conditions MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Problems on Initial Conditions below.
Solutions of Test: Problems on Initial Conditions questions in English are available as part of our course for Electrical Engineering (EE) & Test: Problems on Initial Conditions solutions in Hindi for Electrical Engineering (EE) course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Problems on Initial Conditions | 10 questions in 30 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Problems on Initial Conditions - Question 1
Save

In the circuit shown below, steady state was reached when the switch ‘s’ was open. The switch was closed at t = 0. Then initial value of the current through the capacitor 2C is?

Detailed Solution for Test: Problems on Initial Conditions - Question 1

At steady-state conditions, the capacitor acts as an open circuit, and the inductor acts as a short circuit.

Now considering t = 0-,

Now voltage across 4 Ω resistor is 12 V.

Considering t = 0+

By KCL, 

i2c (0+) = 2 A

The initial value of the current through the capacitor 2 C is 2 A.

Test: Problems on Initial Conditions - Question 2
Save

In the circuit shown in the figure, the switch S is closed at time t = 0. The supply current at t = 0+ and the capacitor voltage at t → ∞ are, respectively

Detailed Solution for Test: Problems on Initial Conditions - Question 2

The switch s is closed at time, t = 0

At, t = 0+, the capacitor is short circuited and inductor is open circuited. Now circuit will become

At, t = ∞, the capacitor is open circuited and inductor is short circuited. Now the circuit will become

1 Crore+ students have signed up on EduRev. Have you? Download the App
*Answer can only contain numeric values
Test: Problems on Initial Conditions - Question 3
Save

If initial voltage retained by the capacitor C1 is 100 V and C2 is zero, the switch k is closed at t = 0, the voltage drop across capacitor C1  in steady state is ________ V


Detailed Solution for Test: Problems on Initial Conditions - Question 3

The circuit after the switch is closed is given in the s-domain in the below figure

The voltage drop across capacitor C1 is

= 33.33 V

*Answer can only contain numeric values
Test: Problems on Initial Conditions - Question 4
Save

The circuit shown in figure was at steady state for t < 0 with switch at position ‘A’. The switch is thrown to position ‘B’ at time t = 0. The voltage across the 10 ohm resistor at time t = 0+ is ________V.

Detailed Solution for Test: Problems on Initial Conditions - Question 4

At t < 0 the circuit was in steady state and switch at ‘A’

The current drawn by circuit i
= 

Current through the inductor IL­(0-)
= 

Immediately after t > 0 the circuit will be the current through Inductor IL­(0-) = IL­(0+)

at t= 0+

V = IL­(0+) × 10Ω

= -3 × 10 = -30V

*Answer can only contain numeric values
Test: Problems on Initial Conditions - Question 5
Save

When current changes from 4A to 0A in 0.1s in an inductor the induced emf is found to be 100V, then find the value of self-inductance is :

Detailed Solution for Test: Problems on Initial Conditions - Question 5

 

*Answer can only contain numeric values
Test: Problems on Initial Conditions - Question 6
Save

For the circuit shown in the figure, the value of  is _____ (in A/s)

Detailed Solution for Test: Problems on Initial Conditions - Question 6

At t = 0-, the circuit is as shown below.

i(0−) = 12 / 6 = 2A

V(0-) = 12 V

The inductor doesn’t allow the sudden change in current.

I(0+) = i(0-) = 2 A

Capacitor doesn’t allow the sudden change in voltage.

V(0-) = V(0+) = 12 V

At t = 0+, the circuit becomes,

By applying KVL,

-12 + 4(2) + 6(2) + VL(0+) = 0

VL(0+) = -8 V

Since  

 

Test: Problems on Initial Conditions - Question 7
Save

In the circuit shown in the figure, the switch s open for a long time. It is closed at t=0 For t>0 the current flowing through the inductor will be given by
Detailed Solution for Test: Problems on Initial Conditions - Question 7

For t < 0,S is open and network is in steady state so the inductor acts like a short circuit.

Test: Problems on Initial Conditions - Question 8
Save

The network shown in the figure given below reaches a steady state with the switch K in position a. At t = 0, the switch is moved from a to b by a make-before-break mechanism. Assume the initial current in 2 H inductors as zero. What is the current in 1 H inductor at t = 0+and t = ∞, respectively?
Detailed Solution for Test: Problems on Initial Conditions - Question 8

Before t = 0 the circuit is

I = 5/2 = 2.5 A

As t → ∞ the current tends to zero, since no power source is present in the circuit, the power stored inductor is dissipated through the resistor.

Test: Problems on Initial Conditions - Question 9
Save

Find  i(0+) and V (2 m sec) for the circuit shown below.
Detailed Solution for Test: Problems on Initial Conditions - Question 9

V(0−) = 50 V = V(0+)

For t > 0, RC = 1.6 m sec.

Test: Problems on Initial Conditions - Question 10
Save

In Reciprocity Theorem, which of the following ratios is considered?
Detailed Solution for Test: Problems on Initial Conditions - Question 10

The Reciprocity Theorem states that if an Emf E in one branch produces a current I in a second branch, then if the same emf E is moved from the first to the second branch, it will produce the same current in the first branch, when the Emf E in the first branch is replaced with a short circuit. Therefore the ratio of Voltage to Current is considered in case of Reciprocity Theorem.

Information about Test: Problems on Initial Conditions Page
In this test you can find the Exam questions for Test: Problems on Initial Conditions solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Problems on Initial Conditions, EduRev gives you an ample number of Online tests for practice

Top Courses for Electrical Engineering (EE)

Download as PDF

Top Courses for Electrical Engineering (EE)

Important Questions for Problems on Initial Conditions

Find all the important questions for Problems on Initial Conditions at EduRev.Get fully prepared for Problems on Initial Conditions with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Problems on Initial Conditions syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Problems on Initial Conditions resources.

Problems on Initial Conditions MCQs with Answers

Prepare for the Problems on Initial Conditions within the Electrical Engineering (EE) exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Problems on Initial Conditions

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Problems on Initial Conditions with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup