Homework help

Discussion in 'Homework Help' started by murlan, Mar 30, 2010.

  1. murlan

    Thread Starter New Member

    Mar 28, 2010
    4
    0
    Hey guys, help me find the current through R4. I don't know where to start or what to do.
     
    Last edited by a moderator: Mar 30, 2010
  2. guitarguy12387

    Active Member

    Apr 10, 2008
    359
    12
    I'd suggest using nodal analysis.

    HINT: you need a supernode
     
    murlan likes this.
  3. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Another approach would be to convert the left-hand part of the circuit comprising the V1 source and the resistors R1 & R2 to a Thevenin equivalent. The values appear to have been chosen with that in mind.

    The subsequent analysis then becomes relatively straightforward.

    You also avoid the supernode.
     
  4. alitex

    Active Member

    Mar 5, 2007
    122
    0
    you can use loops currents theory to find r4 value
     
  5. Robert.Adams

    Active Member

    Feb 16, 2010
    112
    5
    I just worked through it with superposition and confirmed with OrCAD. You have many choices for this problem.
     
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