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2. A section of membrane behaves as a capacitor. a) Find the capacitance C if the...

2. A section of membrane behaves as a capacitor. a) Find the capacitance C if the area is 2.5 square mm, the membrane thickness is 0.75 µm and the dielectric constant K is 3.5.

b) If the voltage across the membrane is DV = 75 mV, what is the charge ±Q on each surface A?

c) How many ions (electrons) does this charge +Q (-Q) correspond to?

d) For this section of membrane (DV and Q as above) what is the stored electric energy

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