Generator Design | MCQs

Explanation

Commutators and brushes are recommended for high DC voltage generators because they produce sparks.

This happens due to the intermittent contact, which helps in maintaining unidirectional current flow but requires careful management to avoid excessive sparking and wear.

Explanation

Difference between AC generator and DC generator: AC generator produces alternating current, while DC generator produces direct current.

Explanation

The decrease in the terminal voltage of a shunt generator is due to armature resistance.

The voltage drop across the armature resistance reduces the terminal voltage as the load current increases.

Explanation

The terminal voltage of a generator changes due to armature resistance.

The voltage drop across the armature resistance affects the terminal voltage as the load current varies.