i) Two insulated long, straight wires cross each other at right angle, and each

Question

i) Two insulated long, straight wires cross each other at right angle, and each carries the same current I. Which of the following statements is true regarding the total magnetic field due to the two wires at the various points in the figure below? All points are equal distance to the wires. More than one statement may be correct. a) The field is strongest at points B and ID b) The field is strongest at points A and C. c) The field is out of the page at point C and into the page at point A. d) The field is out of the page at point B and out of the page at point D e) The field has the same magnitude at all four points. ii) Describe the magnetic force each apply to one another

Explanation / Answer

At point A field die to both the wires is into the page and at pint C the field due to both wires is out of page whereas at point B and D the field due to both wires are in opposite direction.

Thus field at pint A and C is strongest.

Hence option A and C are correct

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