Question

Problem 29.41 18 of 19 > Review Part A Along wire carrying a 4.0 A current perpendicular to the cy-plane intersects the x-axis at = -2.5cm. A second, parallel wire carrying a 2.8 A current intersects the 3-axis at = +2.5cm. At what point on the 2-axis is the magnetic field zero if the two currents are in the same direction? Express your answer to two significant figures and include the appropriate units. OTH HÅR ? Value Units Submit Request Answer Part B At what point on the c-axis is the magnetic field zero if the two currents are in opposite directions? Express your answer to two significant figures and include the appropriate units. OCH HÅR O 2 ? Value Units

Answer 1

ad Answert B = Mol when the current in the two wires are in same direction, then the direction of the magnetic fields in blw the two current carrying wires acts in opposite directions. the location where the magnetic field seso is x from the origin towards right. Bnet =B,- By 1. = Mo J, Mo Iz 21 (3,5cm+2) 27 (2.5cm-) The (1954) Centro (8.5+2) 101-42= 7+2,8 (2.5- 6.8% =3 x=0.440cm -0.44cm Part B when the current in the two wires are in opposite direction, then the direction of the magnetic fields outside of the two current Carrying wires acts in opposite directions the Location where the magnetic field zero is x from the origin towards right. Bnet-B,-B2 - Mo Il Mo Iz DR(2.5cm +1) *27 (8–2.5cm) - stk 425). 2.8 (9.5+269 2:$ty - => 4x1003742 C12-10 = 7+2.8 X - 1.22 = 17 X= 14.17 cm.