Question 4:
The essential difference between an AC generator and a DC generator is that
(a) AC generator has an electromagnet while a DC generator has permanent magnet.
(b) DC generator will generate a higher voltage.
(c) AC generator will generate a higher voltage.
(d) AC generator has slip rings while the DC generator has a commutator.
Answer:
(d) An AC generator has two rings called slip rings. A DC generator has two
half rings called commutator. This is the main difference between both the
types of generators.
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