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Which of the following is NOTa 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.
B has more turns in the secondary winding than in the primary winding
C increases voltage
D the secondary voltage is higher than the primary voltage