Mods edit:
Please don't hijack other member's post, now you have your own.
This thread was split from -- [HELP] 5V laser question.



Can current flow from - to +ve as shown in the figure
Isnt it wrong

 

The file you attached was not clear enough, please attach a new clear one and show how your attempt, the members won't give you the answer directly, just guiding you to get the answer.