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A step down transformer is one whose primary voltage is superior to secondary voltage. It is especially designed to reduce the voltage from the primary winding to the secondary winding. On the contrary, a transformer made to increase the voltage from the primary windings to the secondary windings is called step up transformer. This type of transformer "steps up" the low voltage to a higher voltage.

Regardless of their potential, children will seldom go beyond the expectations of their parents. We can't know how far our children can go, but we can take the lid off the box of low expectations and find out.