Question

Out of an A.C. generator and a D.C. generator
(a) which one uses a commutator (split rings)?
(b) which one uses slip rings?

Answer 1

Answer:

(a) commutator(split ring) is present in DC generator to convert the DC current into AC.

(b) slip ring is used in AC generator

Answer 2

DC generator uses Split Rings (Commutator)

Explanation:

• DC generator uses Split Rings (Commutator)

• To obtain a d.c. voltage, it is necessary to reverse the direction of the natural alternating voltage every half cycle, producing full-wave rectification. This is achieved using a split-ring commutator which, essentially, is a rotating switch.

• When a Permanent magnet is rotated in a gap between two coils it generates Alternating Current. This being advantageous for no need of commutator instead of a light coil or magnet, hence called Slip Rings.

• So, AC Generator uses Slip Rings.