The figure shows the split ring commutator and the two carbon brushes in their respective positions


#1

The figure shows the split ring commutator and the two carbon brushes in their respective positions.

What can you say about carbon brush and split ring commutator?


#2

When the gaps of the split ring commutator are in alignment with the carbon brushes, then contacts are broken and the current is temporarily cut-off.
However, the coil keeps on rotating in the same direction due to its inertia until the split ring commutator and the '* carbon brushes are in contact again.