What is the difference between Normal transformer and No Load transformer in physics?

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Transformers-
the no-load voltage is the voltage across the secondary or primary.when there is no load attached to the secondary,that is, when there is no current in the secondary.
No-load current really only makes sense when talking about a motor, because current is flowing when the device even when it's not under load. A rule of thumb is the no-load current is about a third to one half the full-load current.