What are the operating characteristics of a step-down potential transformer in terms of the secondary load?

Correct Answer: Option B — reduced voltage and increased current

A step-down potential transformer reduces high primary voltage to a lower, safer secondary voltage for instrumentation or control. Because the power (kVA) remains constant, the reduction in voltage necessitates a proportional increase in current on the secondary side, adhering to the fundamental law of conservation of energy in electromagnetic induction.