

To understand break up of a resistor, lets take an example.
See the figure.
If we have a resistance of 6 Ω, and we want to break this single resistance in combination of 2 or more resistances.
So we can choose one of the given combination in figure 1.
There are more combinations possible for this example.
And if we have a resistance of 12Ω, we can choose one of the combination in figure 2.

