When a P $=620$ W ideal $($lossless$)$ transformer is operated at full power with an rms input current of I$1=3\mathrm{.}4$ A$,$ it produces an rms output voltage of V$2=8\mathrm{.}4$ V$.$

Dunleavy,$$Victoria$-$vfd$5105$@psu.edu

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$$ Part $($a$)$

What is the input voltage, in volts?