Question

.(a)What is the role of the split ring in an electric motor?
(b) Which sources produces alternating current?
(c) Distinguish between A.C. and D.C.

Answer 1

( a ) to change the direction of flow of            current.     ( b ) ac generator / dynamo.     ----------------------------------------------------------  Alternate current : it changes direction at regular interval it travels through long distance    Direct current :  it flows in only one direction and it cannot travel a large distance