Q. 104.5( 2 Votes )
Is energy produce
When a transformer steps up the voltage, the voltage increases but the current decreases in the process since the supplied power remains constant.
Now, the power is given by
where V = voltage, I = current.
Since the voltage and current increase and decrease in proportion to each other, the value of power remains constant.
Hence, energy is not produced. Energy = power x time remains constant. (Ans)
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