- #1
krbs
- 51
- 3
Homework Statement
The electric potential difference across a neuron cell membrane is 0.070 V. The thickness of the membrane is 5.0 x 10-9 m.
a) Find the magnitude of the electric field across the membrane. Describe any assumptions you are making.
Homework Equations
ε = V/r
The Attempt at a Solution
ε = 0.070V/5.0 x 10-9m
= 1.4 x 107 N/C
Assuming the width of the cell membrane is constant and that the electric field across it is uniform, the magnitude of the electric field is 1.4 x 107 N/C.