If current is stepped up in a transformer, what happens to voltage?

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Study for the Con Edison Test B focusing on Gas Safety, Electrical Theory, and Job Procedures. Utilize flashcards and multiple choice questions, each providing hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

If current is stepped up in a transformer, what happens to voltage?

Explanation:
In a transformer, the volt‑ampere balance means power in roughly equals power out, so voltage and current move inversely. If the current on the secondary side is higher than on the primary (Is > Ip), the voltage on the secondary must be lower than the primary (Vs < Vp) to keep Vp Ip ≈ Vs Is. This is why stepping up current corresponds to a decrease in voltage. In practice, losses exist, but the basic relationship remains: increasing current on the output side comes with a decrease in voltage.

In a transformer, the volt‑ampere balance means power in roughly equals power out, so voltage and current move inversely. If the current on the secondary side is higher than on the primary (Is > Ip), the voltage on the secondary must be lower than the primary (Vs < Vp) to keep Vp Ip ≈ Vs Is. This is why stepping up current corresponds to a decrease in voltage. In practice, losses exist, but the basic relationship remains: increasing current on the output side comes with a decrease in voltage.

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