Starting from rest, an electron is accelerated through a region between two oppositely charged plates, as shown in Figure 1. The distance between the plates is 10 cm and the magnitude of the potential difference between them is 100 V. Immediately after exiting the region with the uniform electric field, the electron enters a region with a uniform magnetic field of 0.85 T, directed into the page. (a) Calculate the magnitude of the electric force on the electron. (b) Calculate the work done by the electric force on the electron. (c) Determine the electron's speed when it enters the magnetic field. (d) Determine the magnitude and direction of the magnetic force on the electron when it enters the magnetic field. (e) Suppose that the experiment was repeated with the locations of the positive and negative plates switched, and the electron was replaced with a proton, but noth else was changed. Calculate R/R., the ratio of the radius of the proton's path in the magnetic field (R,) to that of the electron (R.). E >A

A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 3.1 x 104 m/s. The distance between the electron and the wire is 8 cm. Calculate the magnitude of the magnetic force on the electron.(Give your answer in newtons but don't include the units.)

As shown in the figure, an electron is fired with a speed of 3.43 x 106 m/s through a hole in one of the two parallel plates and into the region between the plates separated by a distance of 0.20 m. There is a magnetic field in the region between the plates and, as shown, it is directed into the plane of the page (perpendicular to the velocity of the electron). Determine the magnitude of the magnetic field so that the electron just misses colliding with the opposite plate. electron

A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 1.3 x 104 m/s. The distance between the electron and the wire is 7 cm. Calculate the magnitude of the magnetic force on the electron.(Give your answer in newtons. Don't round your answer.)

In a mass spectrometer, the mass of a particle is determined by it's circular path in a magnetic field of value B= 1T. Here, we consider a particle of charge q=te = 1.6 x 10"C that is accelerated across a potential difference AV :- 500 Volts. As shown, this particle enters a chamber with a uniform magnetic field. The particle makes a circular path and strikes the detector a distance I=8 Cm from where it entered the chamber. Part A Determine the mass of the particle. Vo AEO m 3= kg

An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.260 T. If the kinetic energy of the electron is 4.30 × 10 -19 J, find the speed of the electron and the radius of the circular path. (a) the speed of the electron m/s (b) the radius of the circular path um

In a lightning bolt, 12 C of charge flows in a time of 5.7 x 10-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 29 m from the bolt?

Write down an expression for the force experienced by an electron moving with a velocity, v, in a magnetic field B. By equating this expression to the force required to cause electrons to follow a circular path of radius, r, derive an expression for the ratio, (?⁄?) for an electron in terms of the magnetic field strength, the radius of the circular path and the accelerating potential, V.

how did you find F? im confused on where it came from