Differentiate between a transformer and a reactor in a control circuit.

• A. A transformer stores energy; a reactor stores energy
• B. A transformer converts AC to DC; a reactor converts DC to AC
• C. A transformer transfers voltage/current through magnetic coupling; a reactor limits current or smooths the waveform and is used for filtering or protection, without providing energy transfer between circuits.
• D. A transformer and a reactor perform the same function; there is no difference.

Answer: (C)