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Time for any help?

  1. Nov 1, 2004 #1
    I need a little help with the following problem. Any help would be great.

    The upper and lower conduction plates of a large parallel-plate capacitor are separated by a distance d and maintained at potentials Vo and zero , respectively. A dielectric slab of dielectric constant 6 and uniform thickness of 0.8d is placed of the lower plate. Assuming negligible fringing effect, determine the following by solving Lap lace’s equations:

    a.)the potential distribution in the dielectric slab
    b.)the electric field distribution in the dielectric slab
    c.)the potential distribution in the air space between the dielectric slab and the upper plate
    d.)the electric field distribution in the air space between the dielectric slab and the upper plate
    e.)the free surface charge density on the upper plate
    f.)the polarization surface charge density at the interface of the air and upper plate
    g.)the free surface charge density on the lower plate
    h.)the polarization surface charge density at the interface of the dielectric and lower plate
    i.)the free surface charge density at the interface of the air and the dielectric slab
    j.)the polarization surface charge density at the interface of the air and the dielectric slab


    thanx for any help
     
  2. jcsd
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