Electromagnetism¶

Electromagnetism is a fundamental interaction that occurs between particles with electric charge via electromagnetic fields. Electromagnetism can be thought of as a combination of electrostatics and magnetism, which are distinct but closely intertwined phenomena.

Contents:

Circuits
- Couplers
- Diodes
- Filters
- Resonators
- Transmission lines
  - Coplanar lines
  - Microstrip lines
- Waveguides
- Admittance in parallel connection
  - total_admittance
  - admittance
  - law
- Capacitance in parallel connection
  - total_capacitance
  - capacitance
  - law
- Capacitance is proportional to plate area
  - capacitance
  - absolute_permittivity
  - area
  - distance
  - law
- Capacitance of spherical capacitor
  - capacitance
  - absolute_permittivity
  - inner_radius
  - outer_radius
  - law
- Capacitor impedance from capacitance and frequency
  - impedance
  - angular_frequency
  - capacitance
  - law
- Coil impedance via inductance and frequency
  - impedance
  - angular_frequency
  - inductance
  - law
- Energy stored in capacitor via capacitance and voltage
  - energy
  - capacitance
  - voltage
  - law
- Energy stored in inductor via inductance and current
  - energy
  - inductance
  - current
  - law
- Impedance in serial connection
  - total_impedance
  - impedance
  - law
- Inductance in serial connection
  - total_inductance
  - inductance
  - law
- Oscillation period of inductor-capacitor network
  - period
  - inductance
  - capacitance
  - law
- Resistivity of serial resistors
  - total_resistance
  - resistance
  - law
- Sum of currents through junction is zero
  - current
  - law
- Sum of voltages in loop is zero
  - voltage
  - law
- Time constant of resistor-capacitor circuit
  - time_constant
  - resistance
  - capacitance
  - law
- Voltage across charging capacitor in serial resistor-capacitor circuit
  - capacitor_voltage
  - source_voltage
  - time
  - time_constant
  - law
Maxwell equations
Electromagnetism (Vector)
- Electric dipole moment is charge times displacement
  - charge
  - dipole_moment_law()
- Electric field is force over test charge (Vector)
- Electric flux of uniform electric field
  - electric_flux_law()
- Lorentz force via electromagnetic field
Absolute permittivity via relative permittivity
- absolute_permittivity
- relative_permittivity
- law
Admittance is conductance and susceptance
- admittance
- conductance
- susceptance
- law
Capacitance from charge and voltage
- capacitance
- charge
- voltage
- definition
Charge is quantized
- charge
- integer_factor
- law
Current is voltage over resistance
- current
- voltage
- resistance
- law
Electric charge is constant in isolated system
- initial_charge
- final_charge
- law
Electric dipole moment is charge times distance
- electric_dipole_moment
- charge
- distance
- law
Electric displacement is permittivity times electric field
- electric_displacement
- absolute_permittivity
- electric_field_strength
- law
Electric field due to dipole
- electric_field_strength
- electric_dipole_moment
- distance
- law
Electric field due to point charge
- electric_field_strength
- charge
- distance
- law
Electric field is force over test charge
- electric_field_strength
- electrostatic_force
- test_charge
- law
Electric field of uniformly charged plane
- electric_field_strength
- surface_charge_density
- law
Electric field outside charged sphere
- electric_field_strength
- charge
- distance
- law
Electric flux through closed surface via total charge
- total_electric_flux
- total_charge
- law
Electromotive force induced in moving contour
- electromotive_force
- current_turn_count
- time
- magnetic_flux
- law
Electromotive force induced in rotating rod
- electromotive_force
- magnetic_flux_density
- angular_frequency
- length
- law
Electromotive force induced in rotating coil
- electromotive_force
- coil_turn_count
- magnetic_flux_density
- contour_area
- angular_frequency
- time
- law
Electrostatic force via charges and distance
- electrostatic_force
- first_charge
- second_charge
- distance
- law
Electrostatic potential due to point charge
- electrostatic_potential
- absolute_permittivity
- distance
- charge
- law
Electrostatic potential energy of two charges via distance
- electrostatic_potential_energy
- absolute_permittivity
- distance
- first_charge
- second_charge
- law
Electrostatic potential is work to bring from reference point over charge
- electrostatic_potential
- work
- charge
- law
Energy density via permittivity and electric field
- energy_density
- absolute_permittivity
- electric_field_strength
- law
Energy via constant power and time
- energy
- power
- time
- law
Inductance is magnetic flux over current
- inductance
- magnetic_flux
- current
- law
Inductance via number of turns and coil volume
- inductance
- absolute_permeability
- specific_coil_turn_count
- volume
- law
Magnetic field due to infinite wire
- magnetic_flux_density
- current
- radial_distance
- law
Magnetic field of coil
- magnetic_flux_density
- current
- length
- coil_turn_count
- law
Magnetic moment via current and contour area
- moment
- current
- area
- law
Period of rotation of charged particle in magnetic field
- period
- mass
- charge
- magnetic_flux_density
- law
Power factor is real power over apparent power
- apparent_power
- real_power
- power_factor
- law
Power via current and resistance
- power
- current
- resistance
- law
Power via voltage and current
- power
- current
- voltage
- law
Power via voltage and resistance
- power
- voltage
- resistance
- law
Radius of curvature of charged particle in magnetic field
- radius_of_curvature
- mass
- speed
- charge
- magnetic_flux_density
- law
Resistance via resistivity and dimensions
- resistance
- resistivity
- length
- area
- law
Self-induced electromotive force via time derivative of current
- time
- electromotive_force
- inductance
- current
- law
Voltage is electric field times distance
- voltage
- electric_field_strength
- distance
- law
Voltage is line integral of electric field
- voltage
- distance
- electric_field_component
- initial_distance
- final_distance
- law