> Hello,
In the Electronics Club of our university, we are weekly solving
several problems at our meetings. But this time, noone could solve
this problem.
http://it.isikun.edu.tr/tango/electronics/circuit.jpg
If anyone is able to solve this, we would be grateful because many
friends of mine are on the job but still no solutions available.
(although there are speculations about the solution).
Thank you very much,
Electronics Club
20K and 10K off 30V puts the non-inverting (plus bit) at 10V. That's Mr Ohms
law. V = IR. 30 volts across 20K plus 10K iz 30 volts across 30K which gives
a whole 1mA of current. 1mA of current through a 10K resistor gives 10 of
the volts.
Mr 10uF capacitor blocks the DC path to Mr V1 so Mr 77K does not enter into
the DC party.
Mr Op-amp sticks his output so that his inputs (plus and minus bits) sit at
the same volts. Mr other 10uF capacitor blocks the DC yellow brick road to
Mr V2 so Mr Op-amp can stick his minus bit the same as his plus bit without
driving current through his 100K feedback resistor bit.
No current times 100K is no volts. So Mr Op-amp sticks his output at 10 of
the volts.
If Mr V1 goes for a wobble then his 10uF friend couples his wobble to Mr 77K
resistor.
If Bill is the 20K resistor and Ben is the 10K resistor then they find their
way to Ground and become parallel with a value of (Bill x Ben)/(Bill + Ben).
That's because Mr Bill might be connected to 30V..... but 30V is a voltage
source connected to ground. Voltage sources have no Bill or Ben.
Try it like this.
Call Martha a volt and let her wiggle her ass across Bill. The sexual
excitement, current, for Bill is Martha/Bill. Now we are probably talking a
bit of face sitting or getting into oral sex here.......
Since Martha is a woman she can multitask and wiggle her volt over Ben at
the same time. That gives a Martha/Ben.
The total sexual excitement is Martha/Bill + Martha/Ben. Cross pollinate and
you get.... Martha x Ben/Bill x Ben + Martha x Bill/ Bill x Ben which
makes....
(Martha x Ben + Martha x Bill)/(Bill x Ben) is the current
Extract a Martha and
Martha x (Ben + Bill)/(Bill x Ben) is the current......
Obviously Martha has a strapon and Bill and Ben are begging for it.
I think I've lost the plot here....
DNA