Electrostatics

Do a Coulomb's law computation:

Coulomb's law 2.0mC, 5.0mC, 250cm

Compute electric potential and field strength:

charged sphere radius=12cm, charge=5.5mC

Find equations associated with a charge distribution:

charged disk

charged cuboid

electric field of a point charge

electric potential of a charged square sheet

electric charge density of a charged ellipsoid

Magnetostatics

Compute magnetic flux density for an object:

1m 1A Helmholtz coil

magnetic flux density of a long wire, distance 5 m, I=3A

Compute Lorentz force:

Lorentz force on a current carrying wire

Compute force on a pair of wires:

force on two long current-carrying wires

Find the magnetic field strength around a spherical coil:

magnetic field of spherical coil

magnetic induction of spherical solenoid

Find equations associated with a magnetized object:

magnetized ball

magnetizable spherical shell in a magnetic field

magnetic scalar potential of a rectangular bar magnet

Find the axial field strength of an ideal solenoid:

magnetic field of infinitely long solenoid

axial field of an ideal solenoid with 2 amps of current

Electromagnetism

Find information on a moving charge:

Lienard-Wiechert potential

Compute time-dependent electrical potential:

time-dependent charge distribution: electric potential

Electric Circuits

Use input fields to specify data for an Ohm's law computation:

Ohm's law calculator

Analyze an RLC circuit:

RLC circuit 10ohm, 12H, 400uF

Compute properties of a diode:

diode 0.6 V

Compute characteristics of a Butterworth filter:

Butterworth filter

Calculate the power used across an electrical component:

electric power 1.5V, 3A

Electric Machines & Power Systems

Compute characteristics of a motor:

synchronous motor 6 poles

Compute characteristics of a transformer:

transformer 110V, 60Hz

Electromagnetic Radiation

Compute Larmor power:

Larmor power

Compute Larmor frequency:

Larmor frequency electron

Compute a gyromagnetic ratio:

gyromagnetic ratio proton

Visualize the radiation pattern of an antenna:

antenna 4cm, 10 turns

Get information about EMR of specified frequency:

500 MHz

Compute the visible light color corresponding to a frequency:

700 THz light

Compute the attenuation coefficient for radio waves in air:

absorption of em waves at 30 C and 20% humidity

Waveguides

Explore properties of ideal waveguides:

circular waveguide

Examine properties of specific modes:

transverse electrical waves in a circular wave guide for m=1, n=1

Investigate attenuated waveguides:

attenuated rectangular waveguide at 600 GHz

Rutherford Scattering

Determine the cross section for Rutherford scattering:

Rutherford scattering at 30 degrees and 20 eV

Coulomb scattering of a 6 MeV proton

Rutherford scattering with gold

Unit Conversions

Convert obsolete units into current units:

200 statV

16,000 gauss

2400 oersted

80 wheatstones

Physical Constants

Get the value of a physical constant:

eps_0

permeability of vacuum

magnetic flux quantum

Schwinger electric field strength

Material Properties

Look up the value of a material property:

conductivity of copper

Apply Paschen's Law:

breakdown voltage of air at 9mm gap distance

Energy Resources

Get data on energy resources:

France electricity generation

Compare energy sources for a country:

US hydroelectric vs wind electricity generation

Energy Prices

Get energy price data:

price of electricity in Illinois

Compute cost for a specified quantity:

cost of 300 kWh of electricity in Minnesota