Match the columns and choose the correct alternative about electrical machines:

1. Motor

2. Voltage regulator

3. Current transformer

4. Transformer

5. Generator

A. device that maintains the voltage of a power source within acceptable limits.

B. used to measure alternating current (AC).

C. convert electrical energy into mechanical motion.

D. a device that converts motive power (mechanical energy) into electrical power for use in an external circuit.

E. static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.