Discussion
Match each alternator part with its role.
List I
A. Slip rings
B. Claw poles
C. Field diodes
List II
P. form the rotating magnetic poles
Q. conduct field current to the rotor
R. supply the field once generating
Select the correct match.
Answer: C
Slip rings feed the rotor, the claw poles shape the field into alternating north and south poles, and the field diodes take over the supply once the machine self excites. Together they explain how excitation works. Most errors here come from carrying across a result from a neighbouring case where it does not hold. Reading the definition literally, rather than recalling a summary, avoids the usual confusion.
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