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Yay lifted!! So what was the relationship between magnetic field strength and distnce from wire? Is it inversely proportional or inverse squared? Also, the one where a charge is placed between two wire, one has current I and the other 2I. What was the distance to the 2I wire? Was it 2d?
I remember the calculation question with planks constant took me so long I just guessed the final answer.. Oh and the rocket question, I ran out of time and picked A, which was pushing a boat off the shore with an oar
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