(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An electron has an initial velocity with an x component of zero, a y component of 17.2 km/s, a z component 20.7 km/s, and a constant acceleration of 1.95 x 1012 m/s2 in the positive x direction in a region in which uniform electric and magnetic fields are present. If the magnetic field has a magnitude of 378 µT and is in the positive x direction, find the (a)x, (b)y, and (c)z components of the electric field. Give your answers in V/m

2. Relevant equations

F = q(E + v x B) = ma

E = (ma/q) + B x V

3. The attempt at a solution

E = [(9.11E-31 kg*1.95E12 m/s) / -1.60E-19 C] + (378 uT)i x [(17.2 km/s)j + (20.7 km/s)k]

this may seem silly, but I can't remember how to solve for each x, y, and z component now...

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Electron velocity and unit vector notation

**Physics Forums | Science Articles, Homework Help, Discussion**