Electrical Engineering MCQs

Page No. 215

In a series L-C circuit at the resonant frequency the__________?


acurrent is maximum


bcurrent is minimum


c impedance is maximum


d voltage across C is minimum


View Answer current is maximum

In any A.C. circuit always__________?


a apparent power is more than actual power


breactive power is more than apparent power


cactual power is more than reactive power


dreactive power is more than actual power



Time constant of a capacitive circuit__________?


a increases with the decrease of capacitance and decrease of resistance


bincreases with the decrease of capacitance and increase of resistance


cincreases with the increase of capacitance and decrease of resistance


d increase with increase of capacitance and increase of resistance



Inductance of coil___________?


ais unaffected by the supply frequency


b decreases with the increase in supply frequency


c increases with the increase in supply frequency


dbecomes zero with the increase in supply frequency



In a purely inductive circuit__________?


a actual power is zero


breactive power is zero


c apparent power is zero


dnone of above is zero



Time constant of an inductive circuit_________?


a increases with increase of inductance and decrease of resistance


bincreases with the increase of inductance and the increase of resistance


c increases with the decrease of inductance and decrease of resistance


dincreases with decrease of inductance and increase of resistance



Magnitude of current at resonance in R-L-C circuit________?


adepends upon the magnitude of R


bdepends upon the magnitude of L


cdepends upon the magnitude of C


ddepends upon the magnitude of R, Land C



In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of__________?


aR only


b L only


c C only


d LorC


View Answer LorC

The time constant of a series R-C circuit is given by____________?


a R/C


b RC2


cRC


dR2C


View Answer RC

Pure inductive circuit takes power from the A.C. line when_________?


aapplied voltage decreases but current increases


bapplied voltage increases but current decreases


cboth applied voltage and current increase


dboth applied voltage and current decrease



Goto Page No.

Page 215 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