Question

a transformer cannot be used with a direct current source
true or false
​

Answer 1

Answer: Transformer does not work on DC. Direct current have a variable magnetic field induced if fed through the primary winding of transformer. Thus, only a constant magnetic field will act o secondary and shall not induce any voltage across the terminals of the same. So, it works on AC circuits only.

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Answer 2

Answer:

This might help you

Explanation:

True