What type of transformer has a one to one ratio of primary to secondary windings?

What type of transformer has a one to one ratio of primary to secondary windings?

• A. Autotransformers
• B. Isolation transformers
• C. Step-down transformers
• D. Step-up transformers

Answer: (B)

Isolation transformers are designed to provide electrical isolation between their primary and secondary windings while maintaining the same voltage level. This means that if the primary winding has a certain number of turns, the secondary winding will have the same number of turns, resulting in a one-to-one ratio. This type of transformer is often used for safety reasons, as it can help to prevent electric shock and eliminate ground loops by isolating circuits from each other. In contrast, autotransformers share part of their winding between the primary and secondary, which does not provide the same level of isolation. Step-up transformers increase voltage from primary to secondary, resulting in a greater number of turns on the secondary winding compared to the primary. On the other hand, step-down transformers do the opposite, reducing voltage by having more turns on the primary winding than on the secondary. Thus, the one-to-one ratio of isolation transformers ensures that the voltage remains constant while providing electrical separation.

Isolation transformers are designed to provide electrical isolation between their primary and secondary windings while maintaining the same voltage level. This means that if the primary winding has a certain number of turns, the secondary winding will have the same number of turns, resulting in a one-to-one ratio. This type of transformer is often used for safety reasons, as it can help to prevent electric shock and eliminate ground loops by isolating circuits from each other.

In contrast, autotransformers share part of their winding between the primary and secondary, which does not provide the same level of isolation. Step-up transformers increase voltage from primary to secondary, resulting in a greater number of turns on the secondary winding compared to the primary. On the other hand, step-down transformers do the opposite, reducing voltage by having more turns on the primary winding than on the secondary. Thus, the one-to-one ratio of isolation transformers ensures that the voltage remains constant while providing electrical separation.