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In direct current machines, an ____ is a system of conductors that can freely revolve on the supporting bearings

73. In direct current machines, an ____ is a system of conductors that can freely revolve on the supporting bearings.

1. Field system
2. Armature
3. Brushes
4. Commutator

Answer: B) Armature

Explanation:

In direct current machines, an armature is a system of conductors that can freely revolve on the supporting bearings.