Uniform Electric Fields

  • Thread starter EtherMD
  • Start date
  • #1
7
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Homework Statement


A proton (m=1.67x10^-27) is suspended at rest in a uniform electric field E. Take into account gravity and determine E.


Homework Equations


FE=|q|E
Fg=mg


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?

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
LowlyPion
Homework Helper
3,097
5
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?
 
  • #3
7
0
Probably not, but does the way I reached my answer make sense?
 
  • #4
Defennder
Homework Helper
2,591
5
Yes the steps are correct, just a calculation error.
 

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