[理工] 95 台大應力 電磁學

[lplplplplplp (lp)]

a shpere of radius R ,filled with a linear dielectric material with
the relative permittivity Er is placed in a otherwise uniform electic
field Eo az
   (1)
          求內部電場
                                   ANS:3/Er+2 az
                                                  why?
希望有高手能替我解答~

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