Estimate the magnitude of the electric field in a cell membrane with a thickness of 8nm

10^5 V/m

Not 10^5

Do you have any idea what the voltage difference is? You need to divide that by the membrane thickness to get the E-field.

You also need to divide by the dielectric constant of the membrane, which I believe is about 5.

To estimate the magnitude of the electric field in a cell membrane with a thickness of 8 nm, we can use the formula:

Electric field (E) = Voltage (V) / Distance (d)

To calculate the voltage across the cell membrane, we need to know the potential difference or electric potential across the membrane. This potential difference is typically referred to as the membrane potential (Vm). However, the specific value of Vm varies depending on the type of cell.

Once you have obtained the value of Vm, you can calculate the electric field by dividing Vm by the thickness of the cell membrane (d = 8 nm).

Keep in mind that estimating the exact value of the electric field in a cell membrane might be challenging due to the complex nature of biological systems.