Asked Dec 27, 2019

Which of these does a transformer change: voltage, current, energy, power?


Expert Answer

Step 1

A transformer is a device which transforms energy form its primary coil to secondary coil. A transformer changes the voltage and current but it will not change the energy and power.

Step 2

A step-up transformer which has a greater number of coils in the secondary than in the primary will increase the output voltage and decrease the output current. A step-down transformer which has a smaller number...

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Electromagnetic Induction

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