clicker_Chapter_26.ppt

A 7Li nucleus with a charge of +3e and a mass of 7 u and a proton with a charge of +e and a mass of 1 u are both moving in a plane perpendicular to a magnetic field . The two particles have the same momentum. The ratio of the radius of curvature of the path of the proton (Rp) to that of the 7Li nucleus (RLi) is Rp/RLi = 3 Rp/RLi = 1/3 Rp/RLi = 1/7 Rp/RLi = 3/7 None of these is correct. A doubly ionized oxygen atom 16O++ is moving in the same uniform magnetic field as an alpha particle. The velocities of both particles are at right angles to the magnetic field. The paths of the particles have the same radius of curvature. The ratio of the energy of the alpha particle to that of the 16O2+ ion is Ea /EO = 1/1 Ea /EO = 1/4 Ea /EO = 1/16 Ea /EO = 4/1 None of these is correct. A circular current loop lies in the xy plane and has radius R = 10 cm. The loop has 20 turns and carries a current I = 4 A. The magnetic dipole of the loop is A circular current loop lies in the xy plane and has radius R = 10 cm. The loop has 20 turns and carries a current I = 4 A. The magnetic dipole of the loop is A rectangle is bent on two sides at 90? so that one end lies along the xy plane while the other end lies along the xz plane. The length of each bent portion is illustrated on the Figure. A current I flows through the loop. The magnetic dipole of the rectangle is A rectangle is bent on two sides at 90? so that one end lies along the xy plane while the other end lies along the xz plane. The length of each bent portion is illustrated on the Figure. A current I flows through the loop. The magnetic dipole of the rectangle is A current I passes through a slab of metal in the presence of a magnetic field B. Between which two sides does a Hall voltage develop? Write the side with the higher potential first. a and b c and d e and f b and a d and c . A current I passes through a slab of metal in the presence of a magnetic field B. Between which two sides does a Hall voltage develop? Write the side with the higher potential first. a and b c and d e and f b and a d and c . The rectangular aluminum strip in the figure is in a uniform magnetic field, B. The current I is flowing perpendicular to surface 1. Positive charges will accumulate on surface 1. surface 2. surface 3. the surface opposite surface 2. none of these surfaces. The rectangular aluminum strip in the figure is in a uniform magnetic field, B. The current I is flowing perpendicular to surface 1. Positive charges will accumulate on surface 1. surface 2. surface 3. the surface opposite surface 2. none of these surfaces.