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SallyBieber

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Hey all I'd like to help me..

thnx in advance

here z tha Q's :

a) What is the charge per unit area on each plate ? where does it reside ?

b) what is the electric field between the plates ?

c) what is tha capacitance ?

d) As the plate separation is increased, what happens to E, v and C ?

e) If a dielectric is inserted b/w the plates, what happenes to E, v and C ?

.....

a) show that L has dimensions of length

b) The diffusion of oxygen in air is about 10,000 times larger than the diffusion of oxygen in water . By how much will the diffusion distance L change if oxygen diffuses through air instead of water, all other things being equal ?

thnx in advance

here z tha Q's :

**1) Two plane parallel conducting plates each have area S and are separated by a distance b.**

One carries a charge +Q ; the other carries a charge -Q. Neglect edge effectsOne carries a charge +Q ; the other carries a charge -Q. Neglect edge effects

a) What is the charge per unit area on each plate ? where does it reside ?

b) what is the electric field between the plates ?

c) what is tha capacitance ?

d) As the plate separation is increased, what happens to E, v and C ?

e) If a dielectric is inserted b/w the plates, what happenes to E, v and C ?

.....

**2) The distance L that oxygen can diffuse in the steady state is approximately L= √(CD/Q)**

, where C is the oxygen concentration, D is the diffusion constant, and Q is the rate per unit volume that oxygen is used for metabolism, where C is the oxygen concentration, D is the diffusion constant, and Q is the rate per unit volume that oxygen is used for metabolism

a) show that L has dimensions of length

b) The diffusion of oxygen in air is about 10,000 times larger than the diffusion of oxygen in water . By how much will the diffusion distance L change if oxygen diffuses through air instead of water, all other things being equal ?

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