Help finding the voltage in a uniform E-field

AI Thread Summary
To find the voltage across an 8.67-nm-thick membrane with an electric field strength of 9.16 MV/m, the relationship E = -V/d can be applied. The calculation yields a voltage of approximately -79.24 mV. There was confusion regarding the sign and values in the initial attempt, but the correct approach leads to a clear result. Additionally, the discussion highlights a concern about duplicate questions in the forum. Overall, the focus remains on accurately determining voltage in a uniform electric field scenario.
elowe93
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Homework Statement


Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. What is the voltage across an 8.67-nm-thick membrane if the electric field strength across it is 9.16 MV/m? You may assume a uniform E-field.

Homework Equations



E=-Vd

The Attempt at a Solution



.00912V/m=-V/(8.67e-9m) =7.9e-11 V
 
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correction****

sorry i ment that for my answer i got -9.24e6 V/m. i was looking at the wrong thing.
 
Didn't you just post this exact same question?
 

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