The figure shows three situations in which a positively charged particle moves at velocity through a uniform magnetic field and experiences a magnetic force. In each situation, determine whether the orientations of the vectors are physically reasonable.
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- A conductive wire is arranged on the surface of the cube whose sides are 40 cm as shown. The wire is in the same magnetic field B = 0.02 T j. If the conductor is energized by an electric current I = 4 A in the direction shown in the picture, determine the vector of the magnetic force experienced by each piece of wire.As shown in the figure, a small particle of charge q= 6.3 µ C and mass 3.84 x 1012 kg has velocity 9.0 x 10° m/s as it enters a region of uniform magnetic field. The particle is observed to travel in the semicircular path shown, with radius R= 5.0 cm. Calculate the magnitude and direction of the magnetic field in the region in T. If the field is into the page, give a negative number. If the field is out of the page, give a positive number. Region of magnetic field R Path of the particleAn electron is launched at a speed of v at an angle of 0 north of east into a region with a uniform magnetic field. The magnitude of the magnetic field is B and the field is pointing due east. a) Find the radius of curvature of the trajectory. b) Find the pitch (the distance traveled during one revolution, perpendicular to the plane of circular motion) of the trajectory.
- As shown in the figure, a long, hollow, conducting cylinder of inner radius a and outer radius b carries a current that is flowing out of the page. Suppose that a = 4.93 cm, b = 7.93 cm, and the current i = 103 mA, uniformly distributed over the cylinder wall (between a and b). Find the magnitude of the magnetic field at each of the following distances r from the center of the cylinder: a)r = 6.39 cm. b) r = 9.25 cm.I have tried 16.7x10^3, 16.7x10^4, and 1.365x10^8 and those are all wrong for the first part. I know that the second part is 14.3 hr. I need to know the km/s. Thank you!!Which describes the net force on a magnetic dipole in a uniform magnetic field? The net force vector is in the direction of the magnetic field. O The net force vector is in the direction opposite that of the magnetic field. The net force vector is perpendicular to the direction of the magnetic field. O The net force vector is zero.