Question

What is the voltage across an 8.00 nm–thick membrane if the electric field strength across it is 5.50 MV/m?

Answer 1

Answer:

0.044 V

Explanation:

E = Electric field = $5.5\times 10^6\ V/m$

d = Thickness of membrane = 8 nm

When the electric field strength is multiplied by the membrane thickness we get the voltage

Voltage across a gap is given by

$V=Ed\\\Rightarrow V=5.5\times 10^6\times 8\times 10^{-9}\\\Rightarrow V=0.044\ V$

The voltage across the membrane is 0.044 V