An electron is released such that its initial velocity is from right to left across this page.The electron's path,however,is deflected in a direction toward the bottom edge of the page due to the presence of a uniform magnetic field.What is the direction of this field?
A) from bottom edge to top edge of the page
B) into the page
C) from right to left across the page
D) out of the page

Question

Quizplus · Accepted Answer

According to the right-hand rule, the direction of the magnetic field is perpendicular to both the direction of the electron's velocity and the direction of the deflection. Since the electron is deflected towards the bottom edge of the page and its initial velocity is from right to left across the page, the direction of the magnetic field must be out of the page. Thus, the correct answer is choice D, out of the page.

An Electron Is Released Such That Its Initial Velocity Is