Question

2. A long straight wire parallel to the y-axis carries a current of 11 -3.6 A in the-y-direction crosses the x-axis at a point that is 12.0 cm to the left of the origin. Another long straight wire that is 8.40 cm to the right of the origin on the x-axis carries a current of 12 -4.2 into the page. a) What is the net magnetic field (magnitude and direction) produced by these currents at the origin? II 12 I b) A proton moves through the origin traveling along the x-axis to the right. At the moment the proton is at the origin, what is the magnetic force on the proton?

Answer 1

a) Magnetic a) letic field at origin will be N B B Å t B2 Bi UTT X10 x 3.6 llo I, 2T (0.12) = 2T x 0-12 2 X 3.6 0.12 -7 X 10 6x106 T 6 eeT = Br x 4.2 11 lo Iz 21 AC0.084) -7 41 x 10 21T X 10.084) 10 MT → So, B 10 ut ŷr but 6 uT K | BI 10² + 62 UT 11-662 MT made Field Angle by magnetic with tre y-axis, tan'( 10 30.969 50.96° with the so, magnetic field will make tve y-axis

b) So Lets say the velocity of proton v qcrx B) =qc rêx (lout ș t but Å) Force = qV (IOMT but ŷ on proton = 1.6*10-19 C where q= charge