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sarah90
Posted: August 23, 2011 07:55 pm
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http://static.electro-tech-online.com/cust...0823at191-1.png

(cool.gif 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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Wow.

-Adam O.
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MacFromOK
Posted: August 23, 2011 11:58 pm
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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). beer.gif


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CWB
Posted: August 24, 2011 02:59 am
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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 .


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tekwiz
Posted: August 24, 2011 06:53 pm
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QUOTE (CWB @ August 23, 2011 05:59 pm)
i thought we has 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 .

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. tongue.gif



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. smile.gif


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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.

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sherlock ohms
Posted: August 25, 2011 12:04 pm
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QUOTE (tekwiz @ August 25, 2011 04:53 am)
BTW: I am, of course, only joking.

There is no discount... laugh.gif


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CWB
Posted: August 25, 2011 02:05 pm
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and NO S&H green stamps !

(for those that do not know ... google it)


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