What Is the Electric Field Strength Needed to Suspend a Proton?

Thread starter destinee20
Start date Sep 11, 2005
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Proton

AI Thread Summary

To suspend a proton in a uniform electric field, the electric field strength E must counteract the gravitational force acting on the proton. The mass of the proton is 1.67 x 10^-27 kg, and using the equation E = F / q, where F is the gravitational force and q is the charge of the proton, leads to the calculation of E. The user calculated E to be 1.02 x 10^-7 N/C, which was confirmed as correct by other participants in the discussion. This highlights the relationship between electric field strength and gravitational force for charged particles. Understanding this principle is crucial in fields like electromagnetism and particle physics.

Sep 11, 2005

destinee20

A proton (m = 1.67 x 10^-27 kg) is suspended at rest in a uniform electric field E. Take into account gravity at the Earth's surface, and determine E.

I did this problem already but I'm not sure if it's correct...
I used the equation: E = F / q = ma/e to get an answer of 1.02 x 10 ^-7

Is this correct?

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Sep 11, 2005

yourdadonapogostick

yea, that's right.

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