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  1. A

    Maths Ext 1 - General thoughts on the exam

    Well Ext 1 lost it as a strong point for me. Used to be good at maths at my old school then family stuff happened, changed schools and kind of gave up. Stopped working in other words. Maths is all about practice. I didn't practice. Should get around 33% for that paper. That won't get me any...
  2. A

    General thoughts on the exam

    You have to remember that transformers are an application of Lenz's Law, and respond to a change in flux. So as the student turned the thing on and off there was a change in flux, thus the answer is A. Transformers do only work on AC, but the question wasn't asking for a working scenario...
  3. A

    General thoughts on the exam

    Wasn't a bad exam. Specific thoughts on questions: Multi-choice: 10) DC Transformer. Didn't notice it was a DC transformer. Part B: 18) GPE question. I ended up with 166 667 J. Thats not what my physics teacher approximated. 20) Distance between rods. I used difference between eight of...
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