Archive
9th of September 2015
Physics
Q:

so help me understand the role of rings nd bruises in it

Kush Gupta - CBSE - Class X

Wednesday, September 09, 2015 at 19:00:PM

A:

Hi Kush,

The role of a brush is to provide contact to the battery and the coil as the coil and the battery cannot be connected together directly.

The role of a split ring is to reverse the direction of current in the coil. This is to be done so that the coil rotates in the same direction throughout.

Wednesday, September 09, 2015 at 19:10:PM