Which is a characteristic of a step–down transformer?

Answer:  

Step Down Transformer: The Transformer that expands the voltage from Primary (essential) to Secondary (auxiliary) (more optional twisting turns than essential winding turns) loops called Step Down Transformer.

Explanation:

A transformer that reduces high voltage to low voltage is called a step-down transformer. The step-down transformers are that transformers which have high turns on its primary coils than secondary.  

Where  

Vp = Voltage in Primary Coil  

Ip = Current in Primary Coil  

Vs = Voltage in Secondary Coil  

Is = Current in Secondary Coil

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