Q. No 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.
Ans: The option (d) is correct that an
AC generator has slip rings while a DC generator has commutator.
