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4 [[전속,electric_flux]] and [[전속밀도,electric_flux_density]]
D : [[전속밀도,electric_flux_density]]
- 넓이,area
[[전속밀도,electric_flux_density]] = [[전속,electric_flux]] / 면적 (C/m^^2^^)
- 단위,unit
||D field ||C/m^^2^^ ||[[전속밀도,electric_flux_density]] or [[전기변위장,electric_displacement_field]] ||
- 로마자,Latin_alphabet
[[전기장,electric_field]] 중에서 [[전속밀도,electric_flux_density]] or [[전기변위장,electric_displacement_field]] (단위 C/m^^2^^)
||D ||[[전기변위장,electric_displacement_field]] = [[전속밀도,electric_flux_density]] ||C/m^^2^^, C m^^-2^^ ||
||$\vec{D}$ ||[[전속밀도,electric_flux_density]]; curr. goto [[전기장,electric_field]] || ||
- 맥스웰_방정식,Maxwell_equation
'''D''' = 전속밀도 (See [[전속밀도,electric_flux_density]])
||[[쿨롱_법칙,Coulomb_s_law]] ||[[전속밀도,electric_flux_density]](D)의 원천을 검출하면 그 값은 [[전하밀도,charge_density]]가 된다 ||
||[[앙페르_법칙,Ampere_s_law]] ||[[자기장,magnetic_field]]의 [[회전,curl]]을 검출하면 그 값은 [[전류밀도,current_density]] 그 자체 혹은 [[전속밀도,electric_flux_density]](D)의 시간적 증가와 같다 ||
- 밀도,density
[[전속밀도,electric_flux_density]] D : 단위면적당
[[전속밀도,electric_flux_density]] D
- 발산,divergence
[[전속밀도,electric_flux_density]]의 '''발산'''이란,
- 벡터,vector
[[전속밀도,electric_flux_density]] $\vec{D}$
- 변위,displacement
[[전기변위장,electric_displacement_field]] (=[[전속밀도,electric_flux_density]]) $\vec{D}$
- 선속,flux
전기선속밀도 ([[전속밀도,electric_flux_density]]) '''D'''
- 선속밀도,flux_density
전기선속밀도=[[전속밀도,electric_flux_density]] '''D''' (단위 C/m^^2^^)
- 유전율,permittivity
[[전속밀도,electric_flux_density]] = 〃
- 자속밀도,magnetic_flux_density
Compare: [[전속밀도,electric_flux_density]] '''D'''
- 재료,material
||D=εE ||([[전기장,electric_field]]) ||[[전속밀도,electric_flux_density]] = [[유전율,permittivity]] · [[전기장세기,electric_field_intensity]] ||
- 전기변위장,electric_displacement_field
('''[[전속밀도,electric_flux_density]]'''와 동일)
- 전기장,electric_field
$\vec{D}$ : [[전속밀도,electric_flux_density]] AKA [[전기변위장,electric_displacement_field]] (단위 C/m^^2^^)
||D ||[[전속밀도,electric_flux_density]] or [[전기변위장,electric_displacement_field]] ||C/m^^2^^ - 단위 면적을 통과하는 전기력선 ||
[[전속밀도,electric_flux_density]] = [[유전율,permittivity]] × [[전기장세기,electric_field_intensity]]
D = [[전기변위장,electric_displacement_field]] = [[전속밀도,electric_flux_density]], 같은 것
[[전속밀도,electric_flux_density]]
[[전속밀도,electric_flux_density]]
- 전기장세기,electric_field_intensity
$\vec{D}$ 에 대해서는 [[전속밀도,electric_flux_density]] 또는 [[전기변위장,electric_displacement_field]] 참조. (둘이 같은 뜻)
- 전속,electric_flux
또한 전속은 전속밀도 ([[전속밀도,electric_flux_density]] D)를 면적분
[[전속밀도,electric_flux_density]] D (이것은 [[전기장,electric_field]] E와도 밀접)
See [[전속밀도,electric_flux_density]]
전속 Ψ은 D([[전속밀도,electric_flux_density]] or [[전기변위장,electric_displacement_field]])으로 다음과 같이 정의
- 전속밀도,electric_flux_density
[[전속밀도,electric_flux_density]] = [[유전율,permittivity]] × [[전기장세기,electric_field_intensity]]
- 전자기장,electromagnetic_field
||Electric ||D ||[[전속밀도,electric_flux_density]]<<br>>AKA [[전기변위장,electric_displacement_field]]||C/m^^2^^ ||
[[전기변위장,electric_displacement_field]] or [[전속밀도,electric_flux_density]]
- 전자기학,electromagnetism
D [[전속밀도,electric_flux_density]] C/m^^2^^
||[[정전기학,electrostatics]] ||Stationary charges <<br>> $(\frac{\partial q}{\partial t}=0)$ ||[[전기장세기,electric_field_intensity]] $\vec{E}$ (V/m) <<br>> [[전속밀도,electric_flux_density]] $\vec{D}$ (C/m^^2^^) <<br>> 둘의 관계: $\vec{D}=\epsilon\vec{E}$ ||
||[[전기변위장,electric_displacement_field]] or [[br]] [[전속밀도,electric_flux_density]] ||$\vec{D}$ ||C/m^^2^^ ||$\vec{D}=\epsilon_0\vec{E}+\vec{P}$ ||
||D [[전속밀도,electric_flux_density]] AKA [[전기변위장,electric_displacement_field]] ||(G) [[가우스_법칙,Gauss_s_law]] ||(A) [[앙페르_법칙,Ampere_s_law]] ||B [[자속밀도,magnetic_flux_density]] ||
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