Which of the following operations can be used to convert an alternative current dynamo into a direct current dynamo

Which of the following operations can be used to convert an alternative current dynamo into a direct current dynamo
A. number of turns in the coil is increased
B. strength of the field magnet is increased
C. slip rings are replaced with split ring cummutator
D. coil is wound on a soft iron armature

Correct Option: Answer is C
A d.c generator is one in which its current is allowed to flow in one direction even through it may vary in value an a.c generator can only be made to produce a d.c by replacing the two slip rings with a single split ring or commutator.

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