   Chapter 19, Problem 11P

Chapter
Section
Textbook Problem

At the equator, near the surface of Earth, the magnetic field is approximately 50.0 μT northward, and the electric field is about 100. N/C downward in fair weather. Find the gravitational, electric, and magnetic forces on an electron with an instantaneous velocity of 6.00 × 106 m/s directed to the east in this environment.

(a)

To determine
The gravitational force on the electron.

Explanation

Given info: The magnetic field at the equator near the surface of earth is 50.0μT acting northward. The electric field is 100NC-1 acting downward. The instantaneous velocity of the electron is 6.00×106ms-1 directed eastward.

Explanation:

The gravitational force on a particle is given by,

Fg=mg

• m is the mass of the particle
• g is the free fall acceleration

Substitute 9.11×1031kg for m , 9

(b)

To determine
The electric force on the electron.

(c)

To determine
The magnetic force on the electron.

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