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Field of a Long Wire: Three Very Long, Straight, Parallel

Question 43

Multiple Choice

Field of a long wire: Three very long, straight, parallel wires each carry currents of 4.00 A, directed out of the page as shown in the figure. The wires pass through the vertices of a right isosceles triangle of side 2.00 cm. What is the magnitude of the magnetic field at point P at the midpoint of the hypotenuse of the triangle? Field of a long wire: Three very long, straight, parallel wires each carry currents of 4.00 A, directed out of the page as shown in the figure. The wires pass through the vertices of a right isosceles triangle of side 2.00 cm. What is the magnitude of the magnetic field at point P at the midpoint of the hypotenuse of the triangle? A) 4.42 × 10<sup>-6</sup> T B) 1.77 × 10<sup>-5</sup> T C) 5.66 × 10<sup>-5</sup> T D) 1.26 × 10<sup>-4</sup> T E) 1.77 × 10<sup>-6</sup> T


A) 4.42 × 10-6 T
B) 1.77 × 10-5 T
C) 5.66 × 10-5 T
D) 1.26 × 10-4 T
E) 1.77 × 10-6 T

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