Current Attempt in Progress The figure shows a loop model (loop L) for a diamagnetic material. What is the direction of (a) the loop's net magnetic dipole moment M, (b) the conventional current i in the loop (clockwise or counterclockwise in the figure), and (c) the magnetic force on the loop? Axis (a) V (b) (c)Current Attempt in Progress An electron with kinetic energy Ke travels in a circular path that is perpendicular to a uniform magnetic eld, which is in the positive direction of a z axis. The electron's motion is subject only to the force due to the eld. The orbital magnetic dipole moment of the electron has a magnitude p = Ke/B and its direction is opposite that of the eld. Suppose an ionized gas consists of 6.2 X 1021 electrons/m3 and the same number density of ions. Take the average electron kinetic energy to be 8.6 x 10'20 J and the average ion kinetic energy to be 8.1 X 10'21 J. Calculate the magnetization of the gas when it is in a magnetic eld of 1.1 T. Number a Units v Current Attempt in Progress You place a magnetic compass on a horizontal surface, allow the needle to settle into its equilibrium position, and then give the compass a gentle wiggle to cause the needle to oscillate about that equilibrium position. The frequency of oscillation is 0.410 H2. Earth's magnetic eld at the location of the compass has a horizontal component of 12.0 pT. The needle has a magnetic moment of 0.640 mJ/T. What is the needle's rotational inertia about its (vertical) axis of rotation? Number n Units v