15_1_18 - ^ 18 F = r ^ The field lines satisfy dr = r d or...

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18. F = ˆ r + θ ˆ . The field lines satisfy dr = r d θ/θ , or dr / r = d θ/θ
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This note was uploaded on 03/08/2012 for the course MATH 120 taught by Professor Onurfen during the Spring '12 term at Middle East Technical University.

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