All Courses
Get the App Signup / Login
Sign in Open App
Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Basic Electrical Technology  >  Test: Ferromagnetic Core Inductor in a DC Circuit - Electrical Engineering (EE) MCQ

Test: Ferromagnetic Core Inductor in a DC Circuit - Electrical Engineering (EE) MCQ


Test Description

10 Questions MCQ Test Basic Electrical Technology - Test: Ferromagnetic Core Inductor in a DC Circuit

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

When a ferromagnetic core is inserted into an inductor, what happens to the flux linkage?

Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 1

When a ferromagnetic core is introduced into an inductor, its flux increases because the number of magnetic field lines increase due to the introduction of a magnetic within the coil.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 2
Save

What happens to the current when a ferromagnetic material is introduced within an inductor?

Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 2

When a ferromagnetic is introduced within an inductor, the current remains fairly constant. This is because the current does not depend on the magnetic field.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Ferromagnetic Core Inductor in a DC Circuit - Question 3
Save

What is the relation between the flux and the magnetizing current when a ferromagnetic core is introduced within the inductor?

Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 3

When a ferromagnetic core is introduced within an inductor the flux changes rapidly, whereas the current changes at the same pace. Hence the two are not proportional.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 4
Save

What happens to the effective inductance when a ferromagnetic core is introduced?
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 4

The effective inductance increases when a ferromagnetic core is introduced within an inductor because the flux increases. Inductance varies directly with the flux hence it increases.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 5
Save

A laminated steel ring is wound with 200 turns. When the magnetizing current varies between 5 and 7 A, the magnetic flux varies between 760 and 800 ∫Wb. Calculate the incremental inductance of the coil.
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 5

From the formula of incremental inductance, we know that:
L=(Change in flux/Change in current)*Number of turns
Substituting the values from the given question, we get L= 0.004H.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 6
Save

Calculate the number of turns in an inductor with a ferromagnetic core when the inductance is 0.004H, the current changes from 5A to 7A and the flux changes from 760 to 800 ∫Wb.
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 6

From the formula of incremental inductance, we know that:
L=(Change in flux/Change in current)*Number of turns
Substituting the values from the given question, we get N=200.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 7
Save

Calculate the change in current in an inductor having inductance 0.004H, number of turns is 200 and the flux changes from 760 to 800 ∫Wb.
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 7

From the formula of incremental inductance, we know that:
L=(Change in flux/Change in current)*Number of turns
Substituting the values from the given question, we get change in current= 2A.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 8
Save

Calculate the initial current in an inductor having inductance 0.004H, number of turns is 200 and the flux changes from 760 to 800 ∫Wb. Current changes to 7A.
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 8

From the formula of incremental inductance, we know that:
L=(Change in flux/Change in current)*Number of turns
Substituting the values from the given question, we get change in current= 2A.
Change in current= final current- initial current.
2=7-initial current.
Initial current= 5A.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 9
Save

Calculate the chance in flux of an inductor having inductance 0.004H, number of turns is 200 and the current changes from 5A to 7A.
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 9

From the formula of incremental inductance, we know that:
L=(Change in flux/Change in current)*Number of turns
Substituting the values from the given question, we get change in flux= 40∫Wb.

Test: Ferromagnetic Core Inductor in a DC Circuit - Question 10
Save

Calculate the final flux in an inductor having inductance 0.004H, number of turns is 200 and the current changes from 5A to 7A. The initial flux is 760∫Wb.
Detailed Solution for Test: Ferromagnetic Core Inductor in a DC Circuit - Question 10

From the formula of incremental inductance, we know that:
L=(Change in flux/Change in current)*Number of turns
Substituting the values from the given question, we get change in flux= 40∫Wb.
Change in flux= final flux- initial flux.
Thus final flux= 800∫Wb.

57 docs|62 tests
Join Course
Information about Test: Ferromagnetic Core Inductor in a DC Circuit Page
In this test you can find the Exam questions for Test: Ferromagnetic Core Inductor in a DC Circuit solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Ferromagnetic Core Inductor in a DC Circuit, 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 Ferromagnetic Core Inductor in a DC Circuit

Find all the important questions for Ferromagnetic Core Inductor in a DC Circuit at EduRev.Get fully prepared for Ferromagnetic Core Inductor in a DC Circuit with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Ferromagnetic Core Inductor in a DC Circuit 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 Ferromagnetic Core Inductor in a DC Circuit resources.

Ferromagnetic Core Inductor in a DC Circuit MCQs with Answers

Prepare for the Ferromagnetic Core Inductor in a DC Circuit 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 Ferromagnetic Core Inductor in a DC Circuit Basic Electrical Technology

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 Ferromagnetic Core Inductor in a DC Circuit 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