A transistor is used as a switch. Assuming that the total power loss in the transistor $($Collector and Base losses$)$ is equal to $108\mathrm{.}5$ W $.$ If the ambient temperature is $25C,$ and the thermal resistors are given as: $R_{JC}=0\mathrm{.}4\frac{C}{W},R_{CS}=0\mathrm{.}1\frac{C}{W},R_{SA}=0\mathrm{.}5\frac{C}{W},$ then the junction temperature $T_J$ would be equal to:

junction temperature $T_J=$

$C$