Transformation of voltage

A current of 0.5 A flows through the transformer's primary coil connected to a voltage of 120 V. Calculate the voltage and current in the secondary coil if the transformation ratio is equal to the number 5.

Correct answer:

U₂ =  600 V
I₂ =  0.1 A

Step-by-step explanation:

$$\begin{gathered} U_1=120\text{V} \\ {I}_1=0.5\text{A} \\ n=5 \\ {U}_2=n\cdot U_1=5\cdot 120=600\text{V} \end{gathered}$$

$$\begin{gathered} P=U_1\cdot I_1=120\cdot 0.5=60\text{W} \\ P=U_2\cdot I_2 \\ {I}_2=P/U_2=60/600=0.1\text{A} \end{gathered}$$

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