# network theorems in electronics

Discussion in 'Homework Help' started by vead, Dec 18, 2011.

Nov 24, 2011
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i am basic confused
electrical circuit is made from purely passive component such as resistor,capacitor,inductor so i can apply all network theorem here

electronics circuits made from active and passive component the problem for me that how can apply these theorems in electronic or
what is the use of these theorem in electronics

Dec 26, 2010
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They are useful in those situations where they apply, but not in others. It is necessary to understand the conditions, and only use the theorems which work in any given case.

It is true that many situations rule out methods which apply to passive linear networks. For instance, superposition does not apply in calculating the output from a non-linear amplifier to different signal sources summed at its input.

Sometimes it is possible to construct linearised approximations to a system which represent it under certain conditions, for instance the small-signal models produced for transistors and other amplifying devices. These may be analysed by conventional circuit theory, although non-linear methods, often using computers, may be needed to model large-signal conditions.

3. ### hgmjr Moderator

Jan 28, 2005
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Can you attach a typical circuit that you would like to analyze so that we can help you gain a better understanding?

hgmjr

Nov 24, 2011
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i have no circuit these post is only for my understanding
i read many theorems but my doubt is how can apply these theorem in electronics

Nov 24, 2011
621
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sorry sir but i can't understand clearly
can you explain in detail
i know that my communication is very bad so again sorry

6. ### hgmjr Moderator

Jan 28, 2005
9,030
214
It would really help us help you if you can post an example of a simple circuit that you do not understand.

hgmjr

Nov 24, 2011
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ok i ask only one question
what is difference between electronics and electric circuit
and why we learn network theorems for electronics

8. ### Georacer Moderator

Nov 25, 2009
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I think vead is asking if the methods for electric circuits analysis are useful for understanding and analyzing digital circuitry.