The long, straight wire AB shown in the following figure carries a current of I

Question

The long, straight wire AB shown in the following figure carries a current of I1 = 15.5 A. The rectangular loop whose long edges are parallel to the wire carries a current of I2 = 4.45 A. Find the magnitude and direction of the net force exerted on the loop by the magnetic field of the wire..

magnitude T direction ---Select---away from the wiretoward the wireThe net force on the loop is zero. The vector equation r(u. v) = moos vi + mu sin vj + vk, 0 v 5r. 0 w 1, describes a helicoid (spiral ranip). What is the surface area? Find the surface area of the part of the circular paraboloid Z = x2+y2 that lies inside the cylinder x2 +y2=1. Find the surface area of the part of the plane 1x + 4y + z = 2 that lies inside the cylinder x2+y2=16.

Explanation / Answer

force on upper segment

F1 = mue*i1*i2*L/(2*pi*r1)

   = 4*3.14*10^-7*15.5*4.45*0.1/(2*3.14*0.026)

   = 1.061*10^-4 N (upward)



force on lower segment

F2 = mue*i1*i2*L/(2*pi*r2)

   = 4*3.14*10^-7*15.5*4.45*0.1/(2*3.14*0.1)

   = 0.2759*10^-4 N (downward)


Fnet = F1-F2 = 7.851*10^-5 N

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