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Help With Electronics| sarah90 |
Posted: August 23, 2011 07:55 pm
 
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Newbie  Group: Members+ Posts: 2 Member No.: 35,611 Joined: August 23, 2011  |
http://static.electro-tech-online.com/cust...0823at191-1.png
(  For the active filter circuit in (a) sketch the circuit. Then given that Ri = 10 kΩ, Ci = 10 nF, the feedback resistor Rf = 500 kΩ and the op-amp is a 741, determine the values of;(i) The -3-dB frequency. (ii) The time constant τ (in milliseconds) (iii) The maximum voltage gain of this circuit in dB. (iv) The voltage gain in dB at a frequency of f = 1 kHz. |
 
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| AdamO |
Posted: August 23, 2011 10:07 pm
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Forum Addict ++ Group: Trusted Members Posts: 2,304 Member No.: 12,522 Joined: January 03, 2008 |
Wow.
-Adam O. |
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| MacFromOK |
Posted: August 23, 2011 11:58 pm
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 Forum Addict ++ Group: Spamminator Taskforce Posts: 12,945 Member No.: 5,314 Joined: June 04, 2006 |
As a rule, we won't do your homework.
However... if you show some effort (post what you've done or attempted so far), someone will probably help out with the bits you don't understand (so you can complete the assignment yourself).  -------------------- Mac *
"Basic research is what I'm doing when I don't know what I'm doing." [Wernher Von Braun] * is not responsible for errors, consequential damage, or... anything. |
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| CWB |
Posted: August 24, 2011 02:59 am
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 Forum Addict ++ Group: Spamminator Taskforce Posts: 19,509 Member No.: 15,154 Joined: May 15, 2008 |
i thought we had set up some sort of pay scale/service fee for instances such as this .
really though ... like mack says ... show us what effort you have put into figuring this stuff out for yourself . -------------------- "Know how to solve every problem that has been solved"
R. Feynman '88 |
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| tekwiz |
Posted: August 24, 2011 06:53 pm
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 Forum Addict ++  Group: Moderators Posts: 28,711 Member No.: 5,746 Joined: July 24, 2006 |
We did. IIRC, it's $10,000USD per hour, with the price dropping by $1000/hour for every hour the poster has spent trying to solve the problem for themselves. Proof of time spent is required. Posting the results of your own attempts is acceptable proof.  BTW: I am, of course, only joking. But we won't just answer your homework questions for you, as you don't learn that way. What we will do is help you learn to do it yourself.  -------------------- Trouble rather the tiger in his lair, than the sage among his books.
For to you, kings & armies are things mighty & enduring. To him, mere toys of the moment, to be overturned at the flick of a finger. Fortuna favet fortibus. |
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| sherlock ohms |
Posted: August 25, 2011 12:04 pm
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 Forum Addict ++ Group: Spamminator Taskforce Posts: 2,764 Member No.: 26,125 Joined: September 10, 2009 |
There is no discount...  -------------------- "Quotation marks make sentences appear more meaningful."
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| CWB |
Posted: August 25, 2011 02:05 pm
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Forum Addict ++ Group: Spamminator Taskforce Posts: 19,509 Member No.: 15,154 Joined: May 15, 2008 |
and NO S&H green stamps !
(for those that do not know ... google it) -------------------- "Know how to solve every problem that has been solved"
R. Feynman '88 |
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