872_Physics ProblemsTechnical Physics

872_Physics ProblemsTechnical Physics - 212 P30.12 P30.14...

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212 Sources of the Magnetic Field P30.12 µ 0 12 1 1 I a b F H G I K J out of the page P30.44 2 02 . P30.46 (a) 12 6 . T µ ; (b) 56 0 . T µ P30.14 µ π 0 2 2 2 2 2 2 2 I a d d a d ad a d + + F H I K + into the page P30.48 2 01 . GA west P30.50 ~10 5 T, enough to affect the compass noticeably P30.16 (a) 10 0 . T µ ; (b) 80 0 . N µ toward wire 1; (c) 16 0 . T µ ; (d) 80 0 . N µ toward wire 2 P30.52 12 0 . ± mN k e j P30.18 Parallel to the wires and 0 167 . m below the upper wire P30.54 µ ω π 0 2 5 5 q R . P30.20 (a) opposite; (b) 67 8 . A P30.56 1 80 . mT P30.22 5.40 cm P30.58 (a) µ σ 0 v horizontally away from you; P30.24 (a) 400 cm; (b) 7 50 . nT; (c) 1 26 . m; (d) zero (b) 0; (c) 1 2 0 2 2 µ σ v up; (d) 3 00 10 8 . × m s P30.26 (a) 3 60 . T; (b) 1 94 . T P30.60 (a) see the solution; (b) 3 20 10 13 . × T; P30.28 500 A (c) 1 02 10 24 . × N away from the first proton; P30.30 (a) see the solution; (b)
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