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27 Nov 2019
In a typical living cell, the electric potential inside the cell is0.070 V lower than the electric
potential inside the cell. The thickness of the cell membrane is0.10 µm. What are the (a)
magnitude and (b) direction of the electric field within the cellmembrane?
A tiny sphere carrying a charge of -25.0 nC is moved 100 cm in auniform electric field with no
acceleration. It goes from a location at a potential of zero to apotential of + 100 V. (a) How much
work is done by the applied force? (b) What is the significance ofthe sign of ?W?
In a typical living cell, the electric potential inside the cell is0.070 V lower than the electric
potential inside the cell. The thickness of the cell membrane is0.10 µm. What are the (a)
magnitude and (b) direction of the electric field within the cellmembrane?
A tiny sphere carrying a charge of -25.0 nC is moved 100 cm in auniform electric field with no
acceleration. It goes from a location at a potential of zero to apotential of + 100 V. (a) How much
work is done by the applied force? (b) What is the significance ofthe sign of ?W?
Collen VonLv2
11 May 2019
