12.07.2015 Views

FUNDAMENTOS DE FÍSICA III - Departamento de Física - UFMG

FUNDAMENTOS DE FÍSICA III - Departamento de Física - UFMG

FUNDAMENTOS DE FÍSICA III - Departamento de Física - UFMG

SHOW MORE
SHOW LESS
  • No tags were found...

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

e:Ex=4λπ ε⎡⎢⎢⎣1[ ] ⎥ ⎥ 2 22 2( x + − + (0− +0L)xPy x xPPyP⎦0 )−1⎤Ey=λ⎡x (0)0.42 22 20 [ ( )](0) ⎥ ⎥ ⎤⎢P− x + Lx − xP−π ε yP⎢⎣ x −− +Px0+ L + y x xPPyP⎦Finalmente, o campo elétrico é:EGeral( xP, yP⎡11) =iˆ42 22 20 [(x L)x ] y ( x xP) y ⎥ ⎥ ⎤⎢λ⎛⎞⎜−⎟⎢ π ε ⎜⎟⎣ ⎝ 0+ −P+P0− +P ⎠⎦⎡+ ⎢⎢⎣λπ ε⎛⎜x− ( x+ L)− xP 00 P4 2 22 20y ⎜P [ x ( x )]( x0x ) yP−0+ L + y −PP+P⎝−x⎞ˆ. j⎥ ⎥ ⎤⎟⎟⎠⎦ATIVIDA<strong>DE</strong> 4.2Calcular o campo <strong>de</strong> um fio semi-infinito que se esten<strong>de</strong> <strong>de</strong> x0até ∞ .ATIVIDA<strong>DE</strong> 4.3Calcular o campo gerado por um fio infinito em um ponto P x P, y ) .(P84

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!