A conductor has a temperature independent resistance `R` and a total heat capacity `C`. At the moment `t=0` it is connected to a `DC` voltage `V`. Find the times dependence of the conductors temperature t assuming the thermal power dissipated into surrounding space to vary as `q=k(T-T_0)` where `k` is a constant `T_0` is the surrounding temperature (equal to conductor's temperature at the initial moment).