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So my teacher sucks and has basically taught us no option. I chose to teach myself the option Digital Technology, I've already learned most (if not all) the concepts the only thing I sort of struggle on is the Amplifier circuit analysis, I don't seem to find any good resources, books etc. Any tips on analysing amplifiers or maybe some resources, books, notes, videos etc. would be really appreciated

Hi guys! So I'll have my physics exam after 5-6 days. I don't know which option I should learn. Our physics teacher left 3 months ago, and he was very unexperienced teacher + we had many unexperienced teachers last year, because it was the first time they started the IB programme. I am very bad at physics but it was my only option.. So my question is about paper 3 SL option. I have learned Astrophysics, and I think i'll get some points there, however I don't know what to learn for my second option. We were recommended to choose Quantum and Nuclear physics however its really hard for me..

Hi Guys, I was doing some past paper 3s on digital technology and came across a question about something I had never heard about before. The question was about mobile phone networks. After scouring through my course companion and the study guide I found that mobile phone networks are covered in a completely different chapter/option -> F: communications. How am I supposed to answer the question if it is part of a completely different option? Am I expected to know other parts of the communications chapter? A speedy reply would be great as I am in TZ2 and my exam starts tomorrow at 0700UTC/GMT