Which statement is most likely true?
a. ernest rutherford’s experiment led to the nuclear model of the atom.
b. ernest rutherford’s experiment established the plum pudding model of the atom.
c. robert millikan’s postulates form the most accepted theory for the atomic structure.
d. robert millikan’s results had little impact on determining of the charge of an electron.

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?