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Question:

Which of the following is NOT a characteristic of a step-up transformer?

A the primary voltage is higher than the secondary voltage
Explaination

As their names indicate, a step-up transformer is used to step up or increase voltage and a step-down transformer is used to step down or decrease voltage. In a step-up transformer, the secondary voltage is higher than the primary voltage and it has more turns in the secondary winding than in the primary winding.