\fCurrent Attempt in Progress I'm electron that has a velocity with 9: component 1.8 X 11]\" rm's and {r component 2.9 K 10" mr's moves through a uniform magnetic eld with x component Cit13:5 T and 1r component 43.1? T. {3} Find the magnitude of the magnetic iorce on the electron. {b} Repeat your calculation [or a proton having the same velocity. {a} Number n Units v lb} Number a Units v In the figure, an electron accelerated from rest through potential difference V1=0.910 KV enters the gap between two parallel plates having separation d = 28.4 mm and potential difference V2= 83.2 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number( it i + i k) Units MediaA metal strip 9.64 cm long. 1.I:IIIIr cm wide. and 0.942 mm thick moves with constant velocity through a uniform magnetic field B = 1.11 mT directed perpendicular to the strip. as shown in the figure. A potential difference of 4.34 ml" is measured between points x and 5* across the strip. Calculate the speed 1!. Number n Units v c'TextlJook and Media n alpha particle iq = +2e. m = 4.130 u] travels in a circular path ol radius 3.58 cm in a uniform magnetic held with B = 1.31 T. Calculate [all its speed. {b} its period oi revolution. {c} its kinetic energy. and {Cl} the potential dilierence through which it would have to be accelerated to achieve this energy. [all Number n Units at {b} Nu mher a Units v {c} Number n Units v {d} Number a Units v In the figure. a particle moves alonga circle in a region of uniform magnetic Field of magnitude B = 4.3 mT. The particle is eithera proton or an electron {you must decide which]. It experiences a magnetic lorce oi magnitude 3.0 K it] 15 N. 1Ii'lil'hat are [a] the particle's speed. [b] the radius oi the circle. and {c} the period oi the motion? [a] Number n Units v lib} Number Units v in} Number n Units v A horizontal power line carriea a current of 4390 A irom South to north. Earth's magnetic field [T28 MT} is directed toward the north and is inclined downward at 53.0\" to the horizontal. Find the {a} magnitude and {b} direction oi the magnetic iorce on 130 m oi the line due to Earth's eld. [a] Number a Unit; v {b} v