Volume I - DC, DC Network Analysis, Mesh current method, Mesh current by inspection

Discussion in 'General Electronics Chat' started by Miroslav Obradović, Jul 10, 2009.

  1. Miroslav Obradović

    Thread Starter New Member

    Jul 10, 2009
    Hi there,

    I'm a complete beginner in this area.
    I was reading the Mesh current method (Mesh current by inspection)
    and everything seemed nice and easy throughout the whole chapter
    except one little image:


    Could someone please check if the sign of B1 and B2 is correct in the equations on the right-hand side?

    According to my understanding of the chapter, I would solve the other two "Mesh current by inspection" examples just the same as in the book. But I would be wrong with the one included above. By using the method explained, I would get "Simplified" equations with minus sign next to B1 and B2:

    (R1+R2) I1 - R2 I2 = -B1
    -R2 I1 + (R2+R3) I2 = -B2