Chapter 7: Electrostatics, Dielectrics & Current Electricity (Set-2)

A region where ∇×E⃗ = 0 implies

A conductor in electrostatic equilibrium has

Which expression represents potential of a point charge?

For a one-dimensional potential, Poisson’s equation reduces to

Laplace’s equation implies

For a capacitor with dielectric partially inserted, capacitance

Electric susceptibility χe is related to permittivity as

Bound surface charge is produced due to

D-field obeys Gauss’s law

A dielectric with high polarizability has

Clausius–Mossotti equation connects

Macroscopic Ohm’s law is

The drift velocity is

Conductivity of metals

Permittivity of vacuum is

Electric energy density is

A dielectric slab inserted in capacitor reduces

A perfect dielectric has

If uniform polarization exists, bound surface charge appears on

Laplace’s equation ensures

Divergence of D equals

For a parallel-plate capacitor, electric field is

Ohmic materials satisfy

Resistivity is measured in

In electrostatics, the curl of E is

Dielectric constant is the ratio

Electric dipole moment is

In an isotropic dielectric

Drift current density is

Electrical conductivity unit is

The potential of a conductor is

Poisson equation in spherical symmetry reduces to

E-field inside dielectric

Capacitance in series decreases because

Bound volume charge appears when

The polarization vector represents

Relaxation time of a conductor is

For cubic crystals, dielectric constant

Free charge distribution determines

Conductors have

Energy stored per unit volume in dielectric is

A good dielectric has

Laplace equation applicable to

The displacement current exists in

Conductivity σ is

Potential difference in uniform field

Dielectric loss occurs due to

Clausius–Mossotti equation applies to

Metallic conductors obey Ohm’s law because

In dielectrics, E-field lines