\textbf{184.} The figure below shows part of an electric circuit. The energy consumed in resistor $R$ in $25$ minutes is how many kilojoules?
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\textit{[Figure: Circuit segment with $10\,\Omega$ resistor, resistor $R$, $4\,\text{A}$ current source, $1.6\,\text{A}$ branch current, and $5\,\Omega$ resistor]}
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(1) $4.8$ \qquad (2) $9.6$ \qquad (3) $19.2$ \qquad (4) $27.4$
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