Electrical Engineering MCQs

Page No. 150

For an ideal op-amp, which of the following is true?


aThe differential voltage across the input terminals is zero


b The current into the input terminals is zero


cThe current from output terminal is zero


dThe output resistance is zero



In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is________________?


a23dB


b25dB


c46dB


d50dB


View Answer 23dB

Differential amplifiers are used in______________?


aInstrumentation amplifiers


b Voltage followers


cVoltage regulators


dBuffers



The two input terminals of an opamp are labeled as______________?


aHigh and low


bPositive and negative


cInverting and non inverting


dDifferential ans non differential



For an op-amp having differential gain Av and common-mode gain Ac the CMRR is given by___________?


aAv + Ac


bAv / Ac


c1 + Av / AC.


dAc / Av


View Answer Av / Ac

Hysteresis is desirable in Schmitt-trigger, because______________?


a Energy is to be stored/discharged in parasitic capacitances


b Effects of temperature would be compensated


cDevices in the circuit should be allowed time for saturation and desaturation


dIt would prevent noise from causing false triggering



The output voltage Vo of the above circuit is____________?


a-6V


b-5V


c-1.2V


d-0.2V


View Answer -5V

In the above circuit the current ix is___________?


a0.6A


b0.5A


c0.2A


d1/12A


View Answer 0.5A

An opamp has a slew rate of 5V/ S. the largest sine wave o/p voltage possible at a frequency of 1MHz is____________?


a10 V


b5 V


c5V


d5/2 V


View Answer 10 V

The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k?


a


b120k


c 110k


d10k


View Answer 110k

Goto Page No.

Page 150 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