Question

A very long ("infinity") wire, straight and horizontal, conducts a current in the negative "x-axis" direction such that 3.5_*10⁺¹⁸ electrons per second pass through its cross-section. a) What are the magnitude and direction of the magnetic field produced by this wire at a point 4.00 cm above it? b) What acceleration will a particle experience, at that same point, which has a charge of 7 μC, a measured mass that is 50 times that of an electron and that moves in the direction of the axis of the wire, with a speed of ¼ the speed of light in a vacuum?

Answer 1

Current in the wire fa dq dine) at jo.0 0,04m. I + dt e do dt an at of no of electrons per unit time e is charge of electrons 18 In -ve s-axis, 0-56 -19 1.6 x 10 x 3:5xo GI Field produced by Infinite straight were at TY wire is re from RE 오 . 0:04m ar 2 ur T ya I 0.5 21 (0.04) z =-1.99 Alm az -7 B = Mon -1.99 xuux o Wblm asj . To : -2.5 MWb/m mag

moving charge polob =) F qUB TX 10 x L x3 x 10 x 2.5x0 (6) Force ou a mo at that V B -6. -19 8 1 6x10 3xto x 2.8110 X 7XTO -6 8 4 -6 z -6. ܒܝܐ 1.313 mnd. no New ton's law ma 1. 313 x 0 37 -31 50 x 9.11 2010 25 ml aa 2. $8 X10