A cell membrane has a resistance and a capacitance and thus acharacteristic time constant
Part A
What is the time constant of a 7.7 nm -thick membranesurrounding a 4.0×10−2 mm -diameter spherical cell?Assume the resistivity of the cell membrane as 3.6×106 Ω⋅m and thedielectric constant is approximately 9.0.
Express your answer to two significant figures and include theappropriate units.