$4.$ An insulated piston$--$cylinder device initially contains $0\mathrm{.}3$ m $3$ of carbon dioxide at $200$ kPa and $\backslash (27^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ).$ An electric switch is turned on$,$ and a $\backslash (110-\backslash$mathrm$\{$V$\}\backslash )$ source supplies current to a resistance heater inside the cylinder for a period of $10$ min $.$ The pressure is held constant during the process, while the volume is doubled. Determine the current that passes through the resistance heater.