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What is a DC machine?

69. What is a DC machine?

1. A DC machine is an electromechanical device that can transform direct current (dc) electricity but not vice versa
2. A DC machine is an electromechanical device that can transform mechanical energy into direct current (dc) electricity but not vice versa
3. A DC machine is an electromechanical device that can transform direct current (dc) electricity into mechanical energy and vice versa

Answer: C) A DC machine is an electromechanical device that can transform direct current (dc) electricity into mechanical energy and vice versa.

Explanation:

A DC machine is an electromechanical device that can transform direct current (dc) electricity into mechanical energy or mechanical energy into direct current (dc) electricity.