\textbf{156-} In the figure below, what is $V_2$ in volts?
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\textit{[Figure: transformer circuit with $N_1=50$, $V_1=250\,\text{V}$, $N_2=400$, $V_2=?$, and resistance $R$]}
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(1) $216$
(2) $432$
(3) $2160$
(4) $4320$
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\textit{Calculation Space}
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