Comparing Earth's electric and gravitational fields

[pdaniel]

Homework Statement

Earth actually has an electric field of 1.0 x 10^2 N/C at its surface pointing toward the center.
(b) Compare Earth's electric field and gravitational field in terms of
i) direction
ii) shape
iii) how it changes as height increases.

c) What is the largest mass that can be suspended by the electric field of Earth if the particle has the elementary charge on it?

Homework Equations

The Attempt at a Solution

I already did question (a), it was to find the charge on Earth and I got -4.52 x 10^5C

 

[BvU]

Hello PD, welcome to PF !

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