JAMB Physics 2008 Objective — Question 42

Question 42 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2008 Objective paper, with the correct answer and a full explanation.

42. A d.c. generator is essentially the same components as the a.c. generator except the presence of a

A. slip-ring
B. carbon brushes
C. split ringCorrect
D. armature

Explanation

The d.c. generator uses a split-ring commutator (instead of a slip-ring) whose role is to reverse the direction of current, producing direct current output.

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