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  2. Displacement current - Wikipedia

    en.wikipedia.org/wiki/Displacement_current

    This polarization is the displacement current as it was originally conceived by Maxwell. Maxwell made no special treatment of the vacuum, treating it as a material medium. For Maxwell, the effect of P was simply to change the relative permittivity ε r in the relation D = ε 0 ε r E. The modern justification of displacement current is ...

  3. Electric displacement field - Wikipedia

    en.wikipedia.org/wiki/Electric_displacement_field

    In physics, the electric displacement field (denoted by D), also called electric flux density or electric induction, is a vector field that appears in Maxwell's equations. It accounts for the electromagnetic effects of polarization and that of an electric field , combining the two in an auxiliary field .

  4. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    angular displacement: radian (rad) kappa: torsion coefficient also called torsion constant newton meter per radian (N⋅m/rad) lambda: cosmological constant: per second squared (s −2) wavelength: meter (m) linear charge density: coulomb per meter (C/m) eigenvalue: non-zero vector

  5. Ampère's circuital law - Wikipedia

    en.wikipedia.org/wiki/Ampère's_circuital_law

    The displacement current is justified today because it serves several requirements of an electromagnetic theory: correct prediction of magnetic fields in regions where no free current flows; prediction of wave propagation of electromagnetic fields; and conservation of electric charge in cases where charge density is time-varying.

  6. Conjugate variables (thermodynamics) - Wikipedia

    en.wikipedia.org/wiki/Conjugate_variables...

    The intensive (force) variable is the derivative of the internal energy with respect to the extensive (displacement) variable, while all other extensive variables are held constant. The thermodynamic square can be used as a tool to recall and derive some of the thermodynamic potentials based on conjugate variables.

  7. HIV isn't the death sentence it once was: How related deaths ...

    www.aol.com/hiv-isnt-death-sentence-once...

    It took decades to reach current strides in HIV care, largely due to early public health failures. The first U.S. cases of AIDS emerged in 1981, though health officials at the time didn't yet ...

  8. Maxwell's equations - Wikipedia

    en.wikipedia.org/wiki/Maxwell's_equations

    Electric field from positive to negative charges. Gauss's law describes the relationship between an electric field and electric charges: an electric field points away from positive charges and towards negative charges, and the net outflow of the electric field through a closed surface is proportional to the enclosed charge, including bound charge due to polarization of material.

  9. When does 'No Good Deed' come out? How to watch Ray ... - AOL

    www.aol.com/does-no-good-deed-come-200044366.html

    Featuring Lisa Kudrow and Ray Romano, Netflix's new dark comedy "No Good Deed" is "about the highs and lows of searching for a safe, happy home."