17
Rationalised 2023-24
Physics
100
 EXAMPLE 3 6
Solution  Each branch of the network is assigned an unknown current
to be determined by the application of Kirchhoff’s rules To reduce
the number of unknowns at the outset, the first rule of Kirchhoff is
used at every junction to assign the unknown current in each branch We then have three unknowns I1, I2 and I3 which can be found by
applying the second rule of Kirchhoff to three different closed loops