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Interview Question :: Mesh analysis to solve an electrical circuit


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Answers to "Mesh analysis to solve an electrical circuit"
RE: Mesh analysis to solve an electrical circuit?

Write out equations for the voltages in the loops:



Loop 1:

10V = ic*5 + 20*(ic-i2)

Note i2 is the (clockwise) current in loop 2.

since i2 = -0.4*vc , substitute to get

10V = ic*5 + 20*(ic+0.4*vc)

where

vo = 20*(ic-i2) = 20*(ic+0.4*vc)



Loop 2:

the sources muck it up so we just write

vc=10*(5A-i2) = 10*(5A+0.4vc)

from which you can solve for vc and i2.

Now you can solve for ic above (using vc).

Then, you can solve for vo.

Then, use P=V^2/R to find the power in the 20ohm resistor.



Hope this helps.
 
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RE: Mesh analysis to solve an electrical circuit?

Sorry I forgot to pick this best answer. =) Report Abuse
 
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RE: Mesh analysis to solve an electrical circuit?

http://www.google.com/search?sourceid=na...
 
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