A core material is not always necessary for proper operation of a transformer.

Name: A core material is not always necessary for proper operation of a transformer.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Transformers without a core material, such as air-core transformers, are used in certain applications where high frequencies are involved or where low leakage inductance is desired. However, in most conventional transformers, a core material is required to provide a path for magnetic flux and enhance the transformer's efficiency.

A Core Material Is Not Always Necessary for Proper Operation