Whilst reading about differences between PNP and NPN transistors I came across the following circuit diagrams: http://www.learningaboutelectronics.com/Articles/Difference-between-a-NPN-and-a-PNP-transistor
The uppermost circuit diagram, illustrating the function of the NPN transistor, shows the load positioned before the transistor. The lowermost circuit diagram, illustrating the function of the PNP shows the load positioned after the transistor.
Would anybody be kind enough to advise if this is significant and a function of the type of transistor. My understanding would be that the behaviour of the load would remain the same, regardless of its position before or after the transistor.