# Uniform Electric Fields

by EtherMD
Tags: electric, fields, uniform
 P: 7 1. The problem statement, all variables and given/known data A proton (m=1.67x10^-27) is suspended at rest in a uniform electric field E. Take into account gravity and determine E. 2. Relevant equations FE=|q|E Fg=mg 3. The attempt at a solution FG = mg FG = (1.67x10-27)(9.8) FG = 1.64 x 10-26 Since the force on the proton due to the E field is equal and opposite, then: FE=|q|E FE / q= E (1.64x10-26) / (1.6x10-19) = E 1.04x10-9 = E Is my work correct? 1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution
HW Helper
P: 5,346
 Quote by EtherMD Since the force on the proton due to the E field is equal and opposite, then: FE=|q|E FE / q= E (1.64x10-26) / (1.6x10-19) = E 1.04x10-9 = E
Have you handled your exponents correctly?
 P: 7 Probably not, but does the way I reached my answer make sense?
HW Helper
P: 2,618

## Uniform Electric Fields

Yes the steps are correct, just a calculation error.

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