A transistor is used as a switch. Assuming that the total power loss in the transistor $($Collector and Base losses$)$ is equal to $130$ W$.$ If the

ambient temperature is $25$ C$,$ and the thermal resistors are given as: R $=0\mathrm{.}5$ C$/$W$,$ R $=0\mathrm{.}2$ C$/$W$,$ R $=0\mathrm{.}6$ C$/$W$,$ then the junction

temperature T would be equal to:

junction temperature T $=$C

o JC