Electromagnetic Induction MCQ Questions & Answers

Home

Competitive Exams

Aptitude English Verbal Reasoning Non Verbal Reasoning General Knowledge(GK) General Science(GS) Data Interpretation(DI) Banking Awareness Current Affairs

Computer & Programming

Computer Fundamentals Networking SQL Database C Programming C++ Programming Java Python

Other Subjects

Commerce Management Law Political Science Psychology Agriculture

Exam Categories

SSC Exams Railway Exams All Exams

SSC Exams

SSC CGL SSC CHSL SSC MTS SSC CPO SSC GD SSC JHT SSC Selection Post SSC Stenographer SSC JE

Railway Exams

RRB ALP RRB Technician RRB Section Controller RRB JE RRB Paramedical RRB Group D

Popular Exams

SSC CGL SSC CHSL SSC MTS RRB Group D RRB ALP RRB Technician RRB Section Controller

Engineering Subjects

Computer Science Electronics & Communication Mechanical Engineering Civil Engineering Electrical Engineering

More Engineering

Chemical Engineering Automobile Engineering Biotechnology Mining Engineering Geological Engineering

Engineering Core

Engineering Mathematics Engineering Physics Engineering Chemistry Metallurgical Engineering

Computer Fundamentals

Computer Fundamentals Networking Database SQL MySQL

Programming

C Programming C++ Programming Java Python PHP JavaScript

Advanced

Artificial Intelligence Machine Learning Data Science Cloud Computing Hadoop IoT

Graduation & PG

Commerce Management Law Mass Communication Political Science Psychology

Resources

Current Affairs Interview Blog

Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is

A) 5 mH B) 10 mH C) 5 H D) 10 H

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A coil induces 350 mV when the current changes at the rate of 1 A/s. The value of inductance is

A) 3500 mH B) 350 mH C) 250 mH D) 150 mH

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Higher the self-inductance of a coil,

A) Lesser its weber-turns B) Lower the e.m.f. induced C) Greater the flux produced by it D) Longer the delay in establishing steady current through it

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The inductance of a coil will increase under all the following conditions except

A) When more length for the same number of turns is provided B) When the number of turns of the coil increase C) When more area for each turn is provided D) When permeability of the core increases

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns.

A) Yes B) No

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it

A) Lies perpendicular to the magnetic flux B) Lies in a magnetic field C) Cuts magnetic flux D) Moves parallel to the direction of the magnetic field

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The coefficient of coupling between two air core coils depends on

A) Self-inductance of two coils only B) Mutual inductance between two coils only C) Mutual inductance and self inductance of two coils D) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Air-core coils are practically free from

A) Hysteresis losses B) Eddy current losses C) Both A and B D) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A laminated iron core has reduced eddy-current losses because

A) More wire can be used with less D.C. resistance in coil B) The laminations are insulated from each other C) The magnetic flux is concentrated in the air gap of the core D) The laminations are stacked vertically

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In case of an inductance, current is proportional to

A) Voltage across the inductance B) Magnetic field C) Both A and B D) Neither A nor B

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

1 2 3 4 5

Electromagnetic Induction MCQ Questions & Answers | Electrical Engineering