Auniform magnetic field b=5.210 t is perpendicular to the plane of the paper (into the page). the current-carrying wire of value i = 2.000a (directed to the right) with length l=0.5000m perpendicular to the magnetic field and current is going from left to right. find the magnitude of the magnetic force (in tesla) on the wire. a. 5.210t
b. 10.42t
c. 0t
d. can not be determined
show work!

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?