adspace


why the input resistance of an op-amp is high whereas it's
output resistance is low?

Answer Posted / shethia.tejas

because first stage of op-amp is FET DIFF AMP and FET has
highest i/p imp.
The output resistance is LOW as with negative feedback it
approaches zero at low frequencies.

Is This Answer Correct ?    6 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to make a robo car .Please give me whole theory ,photos of circuits etc. on my e-mail id.

3640


please send me the previous question papers of ntpc writen test for ece

2338


Draw the symbol of jfet and mosfet.

1308


Any idea of BSNL, JTO paper?

2153


i am electronics & comm engg & appling 4 the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & old question papers.I will be very much thankful to you akil403@yahoo.com

2137


Hi i am chinna reddy i had completed my b.tech(ECE)2010 passout. but still no job please if anyone help me and suggest me. my mailid:chinnareddy.be@gmail.com Thanks&Regards chinna

2132


i had cmpltd my diploma with 89% in ECE and i got call letter foe the interview of isro bengaluru which bks i hv ti prefer

2205


pls send my id for supervisor model paper qustion

2199


I am in need of question set of ONGC Electronics & Communication

2849


Plz send me some sample papers on OCES papers. I am appearing in OCES/DGFS-2009.Plz inform me by my emailid- subhabrata03851@gmail.com

3554


I am perparing for DMRC Jr. Engineer Post. Please post me reference book Name At my Id laxman.negi@gmail.com

2490


I want previous rrb enteranse exam papers in section engineer. please send that papers to my id rohit_nist@yahoo.co.in

2810


i completed my b.tech.i want to prepare for civils. when new batch classes will start at rc reddy. plz mail me rajesh.mc28@gmail.com

2045


Dear concern Plz provide me the solved papers of Railway section engineer in signal...

2018


sir i want to know when is the exam in 2009 and last date for application form ,plz let me know sir

2155