True or False? The primary voltage of a step-down transformer is higher than the secondary voltage.

True or False? The primary voltage of a step-down transformer is higher than the secondary voltage.

• A. True
• B. False
• C. Not always
• D. Depends on the application

Answer: (A)

In the case of a step-down transformer, the primary voltage is indeed higher than the secondary voltage. This type of transformer is designed specifically to reduce voltage from a higher level to a lower level while maintaining the same amount of power (minus some losses) across its coils. In a step-down transformer, the primary winding has more turns of wire compared to the secondary winding. According to the transformer equations, the voltage ratio between the primary and secondary windings is directly related to the ratio of the number of turns. Therefore, since the primary has more turns, it produces a higher voltage than the secondary, confirming that the primary voltage is greater. Understanding this fundamental principle helps clarify why the answer is true. It reflects the operational design of step-down transformers used in various applications, such as reducing voltage levels for safe usage in homes and businesses.

In the case of a step-down transformer, the primary voltage is indeed higher than the secondary voltage. This type of transformer is designed specifically to reduce voltage from a higher level to a lower level while maintaining the same amount of power (minus some losses) across its coils.

In a step-down transformer, the primary winding has more turns of wire compared to the secondary winding. According to the transformer equations, the voltage ratio between the primary and secondary windings is directly related to the ratio of the number of turns. Therefore, since the primary has more turns, it produces a higher voltage than the secondary, confirming that the primary voltage is greater.

Understanding this fundamental principle helps clarify why the answer is true. It reflects the operational design of step-down transformers used in various applications, such as reducing voltage levels for safe usage in homes and businesses.