A transformer responds only to dc.

More Questions from Transformers

• A transformer changes ac to dc.
• A step-up transformer steps up power.
• The primary is the winding connected to the source, and the secondary is the winding connected to the load.
• A center tap (CT) is a connection at the midpoint of the secondary winding of a transformer.
• If the voltage is stepped up, the current is stepped down, and vice versa.
• A step-down transformer has a turns ratio less than 1.

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