A current I flows down the central conductor of a long, cylindrical coaxial cable. This current is returned going in the other direction through the outer conductor. Let r1, ľ2, and r3 be the relevant radii of the coaxial cable as shown above, and assume a homogeneous current density in both layers of the coaxial cable. Use Ampere's Circuital Law to solve for the magnetic field that exists within the wire as a function of r.

A proton moves in a uniform magnetic field as shown below. Find the direction of the force on the upward particle. O Up left To the right O To the left O Down O out of the page into the page right downward B

A wire carries an I, = 7.05-A current along the x-axis, and another wire carries an I, = 5.35-A current along the y-axis, as shown in the figure below. What is the magnetic field at point P, located at x = 4.00 m, y = 3.00 m? magnitude HT direction Select--- y (4.00, 3.00) m

(Figure 1) shows a mass spectrometer, an analytical instrument used to identify the various molecules in a sample by measuring their charge-to- mass ratio q/m. The sample is ionized, the positive ions are accelerated (starting from rest) through a potential difference AV, and they then enter a region of uniform magnetic field. The field bends the ions into circular trajectories, but after just half a circle they either strike the wall or pass through a small opening to a detector. As the accelerating voltage is slowly increased, different ions reach the detector and are measured. Consider a mass spectrometer with a 200.00 mT magnetic field and an 8.0000 cm spacing between the entrance and exit holes. igure + AV d Detector Part A To five significant figures, what accelerating potential difference AV is required to detect the ion O,? The masses of the atoms are shown in the table; the mass of the missing electron is less than 0.001 u and is not relevant at this level of precision. Use…