Author Question: What is the kinetic energy of an electron that passes undeviated through perpendicular electric and ... (Read 53 times)

kellyjaisingh · **on:** Jul 28, 2018

What is the kinetic energy of an electron that passes undeviated through perpendicular electric and magnetic fields if E = 4.0 kV/m and B = 8.0 mT?
a. 0.65 eV
b. 0.71 eV
c. 0.84 eV
d. 0.54 eV
e. 1.4 eV

Question 2

A proton is accelerated from rest through a potential difference of 2.5 kV and then moves perpendicularly through a uniform 0.60-T magnetic field. What is the radius of the resulting path?
a. 15 mm
b. 12 mm
c. 18 mm
d. 24 mm
e. 8.5 mm