1.) An electron of mass 9.1 × 10^31 kg moves horizontally toward the north at 4.
ID: 1397144 • Letter: 1
Question
1.) An electron of mass 9.1 × 10^31 kg moves horizontally toward the north at 4.0 × 10^7 m/s.
A.) Determine the magnitude of a minimum B field that will exert a magnetic force that balances the gravitational force that Earth exerts on the electron.
2.) Each of the lettered dots a-d shown in the figure represents a +1.0×10^5-C charged particle moving at speed 2.0×10^7 m/s. A uniform 0.50-T magnetic field points in the positive z-direction.
A.) Determine the magnitude of the magnetic force that the field exerts on each particle. and indicate carefully, in a drawing, the direction of the force.
FBon(a), FBon(b), FBon(c), FBon(d)= _____,______,______,______ N.
Explanation / Answer
1) Apply, FB = Fg
q*v*B = m*g
B = m*g/(q*v)
= 9.1*10^-31*9.8/(1.6*10^-19*4*10^7)
= 1.4*10^-19 T
2) Figure is missing
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.