Exercises II — task. Science CBSE, Class 10.

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1. The essential difference between an AC generator and a DC generator is that

AC generator has an electromagnet while a DC generator has a permanent magnet.
AC generator will generate a higher voltage.
DC generator will generate a higher voltage.
AC generator has split rings while the DC generator has a commutator.

2. At the time of short circuit the current in the circuit

increases heavily
does not change
vary continuously
reduces substantially

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