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Category > Physics Posted 08 May 2017 My Price 9.00

A section of a bilayer membrane

  1. A section of a bilayer membrane behaves as a capacitor. If each surface of this membrane section has area A,
  2. a) Find the capacitance C if the area, A = 2.2 square mm, the membrane thickness is 0.75 μm and the
  3. dielectric constant K is 3.5. (3 marks)
  4. b) If the voltage across the membrane is ΔV = 75 mV, what is the charge (±Q) on each surface A? (2 marks)
  5. c) How many ions (electrons) does this charge Q (−Q) correspond to? (2 marks)
  6. d) For this section of membrane (ΔV and Q as above) what is the stored electric energy? (2 marks) 

Answers

SuperTutor
(15)
Status NEW Posted 08 May 2017 12:05 AM My Price 9.00

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