re: HSC Physics Marathon Archive
It's a dumb question as "side" could literally mean anything.
The electrons are traveling towards us to the nearest side and holes to the far side. Yet, side the question is talking about is the up or down side. Fuckin dumb question.
the K question wasnt even hard lol. Just use an ICE table and you are sweet. I'm glad they asked a K question as it is by far the most routine and easiest part of industrial chemistry.
i literally did it really quickly in the last 5 minutes, and judging by your answers i got 18/20 (i was going so quickly i didn't see that the incomplete combustion choice D wasnt balanced, and i didn't have enough time to work out the lead concentration one -> didnt even attempt it)
re: HSC Physics Marathon Archive
Why is the answer C?
Is it because this a p-n junction?
Don't holes move in opposite direction to electrons?
Somone help please!