A. Find the magnitude of the total magnetic field these charges produce at point

Question

A. Find the magnitude of the total magnetic field these charges produce at point P, which is 8.30 nm from each charge.

B. Also find the direction of the magnetic field

iPad 7:41 PM session Question 7 MasteringPhysics Question 7 An alpha particle (charge+2e) and an electron move in opposite directions from the same point, each with the speed of 2.60x105 m/s 140° Electron Alpha particle Q Tap image to zoom Part A Find the magnitude of the total magnetic field these charges produce at point P, which is 8.30 nm from each charge Express your answer with the appropriate units. B=1.0776 mT 1 2 3 45 6 7 8 9 0

Explanation / Answer

B = (u0/4 pi) q v x rhat/r^2

so for postive charge out of the page

for electron also out of page

so B = (u0/ 4pi) v/r^2 ( 2e + e) x sin(140)

B = 10^(-7) x 2.6 x 105/(8.3 x 10-9)2 x 3 x 1.6 x 10-19 x sin(140) = 1.16 x 10-4 T out of page

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