Electrical Engineering MCQs

Page No. 7

Transformer works on the principle of________________?


aLenzs law


bFaradays law


c Mutual induction


d Law of conservation of power


View Answer Mutual induction

An electric current induced within the body of a conductor when that conductor either moves through a non uniform magnetic field or in a region where there is a change in magnetic flux is called_____________?


aInduced current


bEddy current


cBack emf


dNone of the above


View Answer Eddy current

The out put voltage of a transformer is 3 times the input voltage then turns ratio will be________________?


a3-Jan


b 3


c1


d6


View Answer 3

Long distance transmission is easy for________________?


aD.C voltage


b A.C voltage


cHalf A.C voltage


dHalf D.C voltage


View Answer A.C voltage

Magnetic compass needle will be deflecting if it is kept near________________?


aStatic charge


bSoft iron


cSemi-conductor


dAccelerating charge


View Answer Accelerating charge

A.C can not be used for_______________?


aproducing heat


bproducing light


cMagnetizing iron


dProducing magnetic field


View Answer Magnetizing iron

A small coil lies inside a large coil. The two coils are horizontal concentric and carry currents in opposite directions. The large coil will experience______________?


aA torque about horizontal axis


b A torque about vertical axis


cAn upward force along the axis


dNo resultant force


View Answer No resultant force

The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?


aMagnetic flux density


bTorque


cMutual induction


dMotional emf


View Answer Magnetic flux density

The emf induced in a coil by a changing magnetic flux may have unit as______________?


ams-1A


bms-2A-1


ckgms2A-1


dkgm2s-1A-1


View Answer kgm2s-1A-1

Power loss in actual transformer is due to_________________?


a Small output


b Eddy currents and magnetic hysterias


cSoft iron core


d Back emf



Goto Page No.

Page 7 of 366

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan