E&M

From this page you can view demos for Electricity and Magnetism classes.

This page contains all the Electricity/Magnetism demos.  To navigate to a specific category of these demos, use the menu on the left. To view a demo, click on either the image or the number/name.

Name/NumberImageDescription
5A10.20 - Electrophorus5a1020electrophorus_4Demonstrates charging by induction.
5A20.10 Rods and Pivot5a20.10 rods and pivotThis demonstration shows how with a charged rod on a pivot, one can use another of the same or opposite charge to show attraction or repulsion.
5A20.20 - Pith Balls5a2020_pith_balls_6Show attraction and repulsion of charges, Polarization and Coulomb's law.
5A22.10 - Braun Electroscope5a2210_braun_electroscope_3Demonstrate charging by induction and attraction and repulsion of charges.
5A22.30 - Gold Leaf Electroscope5a2230_gold_leaf_electroscope_4Show the presence of charge.
5A30.10 - Wire vs. String5a3010_wire_versus_string_2Shows the difference between a conductor and an insulator.
5A40.20 - Attracted Soda Can5a4020_attracted_soda_can_1Polarize a metal soda can with a charged rod.
5A40.23 - Blow Soap Bubbles at Van de Graff5a4024_blow_bubbles_at_van_de_graaff_3Polarization of soap bubbles.
5A40.30 - Charged Rod Deflects 4x65a4030_charged_rod_deflects_4x6_3Use polarization to move a 4x6 piece of wood.
5A40.40 - Deflection of a Stream of Water5a4040deflection_of_a_stream_of_water_2This demonstration shows that a charged rod can deflect a stream of water.
5A50.10 - Wimshurst Machine5a5010 wimshurst_machine_1This machine is used to create electric charge and store it in capacitors (Leyden jars). When the ...
5A50.30 - Van de Graff Generator5a5030vdgThis is a high voltage Van de Graff generator (~400,000V) used for many electricity demos. If ...
5B10.10 - Hair on End5b1010 hair_on_end_1This demonstration illustrates the buildup of charge on someone's hair.
5B10.15 - Van de Graff Streamers5b1015vdg_streamersPlace the streamers on the Van de Graff machine. As the streamers get charged, they will follow the electric field lines.
5B10.25 - Styrofoam Peanuts on Van de Graff Gen.5b1025styrofoam_peanuts_on_vdg_genThis demo shows the buildup of charge on Styrofoam peanuts by the Van de Graff generator.
5B10.30 - Franklin's Bell (Electric Chimes)5b1030 franklins_bells_2A conductive ball is suspended between two vertical parallel plates connected to the Wimshurst machine. The ...
5B10.40 - Electric Field Lines on Overhead5b1040cThis demonstration visually shows the electric field lines using the overhead projector.
5B10.51 - Mapping Equipotential Lines5b1051This demonstration uses a voltage probe to view equipotential voltage lines. Designed to be used on the overhead projector.
5B20.10 - Surface Charge5b2010surface_chargeThis demo shows that charge on a solid conductor resides entirely on the outer surface. This ...
5B20.35 - Faraday CageRadio waves, being electromagnetic in nature, do not penetrate the metal cage because ...
5B30.35 - Point and Ball w/ Van de Graff5b3035point_and_ball_with_vdgThis demonstration illustrates how a lightning rod works (as well as any sharp point).
5B30.50 - Electric Pinwheel5b3050electric_pinwheelThis demonstration shows that a pinwheel on a Van de Graff generator will spin.
5C10.20 - Parallel Plate Capacitor5c1020parallel plate capacitorThis demo uses a large parallel plate capacitor to show that the capacitance varies when the air gap size is changed.
5C20.10 - Capacitor with DielectricsThis demo illustrates the effects of a dielectric on a capacitor.
5C30.20 - Short a CapacitorThis demo shows what happens when you short a large capacitor.
5C30.30 - Light the Bulb5c3030light_the_bulbThis demo shows what happens when you short a large capacitor.
5D10.40 - Resistance Model5d1040resistance modelThis is a visual model of resistance on a microscopic scale. When the lead ball hits a nail, this represents ...
5D20.10 - Wire Coil in LN25d2010wire_coil_in_ln2A wire coil is connected in series to a battery and light. When the wire coil is put in the Liquid ...
5D20.20 - Wire Coil in FlameA wire coil is connected in series to a battery and light bulb. When the wire coil is heated up in the ...
5D40.10, 5K30.50 - Jacob's Ladder5k3050jacobs_ladderThe Jacob's Ladder uses AC voltage with a transformer made of two wire coils in such a way ...
5E20.12 - Electrolysis of Water5e2012electrolysis of water 2This demonstration shows how an electric current is produced from separating Hydrogen from water.
5E40.20 - Voltaic Cell5e4020voltaic_cell_2A voltaic cell is made with copper and zinc electrodes in a sulfuric acid solution.
5E40.25 - Fruit and Vegetable Battery5e4025This demonstration uses the energy of two fruit to power a clock.
5E50.65 - Thermoelectric Fan (Peltier)4f5012thermoelectric_fanBy keeping the plates of a peltier at different temperatures, a current is produced to run the fan.
5F10.15 - Water Analog (voltage drop and current)5f1015This is a visual model of a voltage drop and the current. You may adjust the height of the water ...
5F15.32 - Vaporize a Wire5f1532vaporize_a_wireShort a car battery with a wire to burn it. The car battery is able to supply over 100amps of current for a short time.
5F20.50 - Series and Parallel Lights5f2050series_and_parallel_lightsThis configuration shows a set of series and a set of parallel lights connected to AC voltage. ...
5F20.50-Parallel Lights with Multimeter5f2050This demo shows a set of parallel lights connected to AC voltage. This can show the voltage and current flowing through the lightbulbs with different sized batteries.
5F30.20 - Charge and Discharge an RC CircuitUse the oscilloscope to show V(t) for a capacitor charging and discharging in an RC circuit.
5G20.10-Barkhausen EffectA soft iron and hard steel cores are placed in a small coil attached to an audio amplifier and the assembly is inserted into a magnetic field.
5G20.30 - Magnetic Domains (Array of Arrows)5g2030magnetic_domainsThis demo shows the magnetic field lines of a magnet on the overhead projector.
5G20.70 - Small Electromargnet5g2070small_electromagnet_2This demonstration uses a small electromagnet connected to a 9V battery to pick up the ...
5G20.71 - ElectromagnetThis demonstration illustrates the pieces that make up a simple electromagnet.
5G30.20 - Paramagnetism of Liquid Oxygenliquid_oxygen_4Using a high power magnet, you can show the paramagnetism of liquid oxygen In general ...
5G50.10 - Curie Pointcurie_point_2A ball of iron is attached to a magnet. Heat the iron near the magnet and it should fall after a few seconds.
5G50.50 - Meissner Effect5g5050meissner_effect_3Cool a superconductor with liquid nitrogen and a small magnet floats on it due to magnet repulsion.
5H10.30 - Magnetic Field Lines (Iron Filings)5h1030magnetic_field_lines_around_a_magnetThis demo shows the magnetic field lines of a magnet on the overhead projector.
5H15.10 - Iron Filings Around a Wire5h1510iron_filings_around_a_wire_2Iron filings are sprinkled around a vertical wire running through plexiglass. The iron filings ...
5H15.40 - Iron Filings Around a Solenoid5h1540iron_filings_around_a_solenoidA solenoid is wound through a peice of plexiglass for use with iron filings on the ...
5H20.10 - Magnets on a Pivot5h2010magnets_on_a_pivotThis demonstration shows that a magnet on a pivot will move in response to another ...
5H30.10 - Magnet and TV5h3010magnet_and_tv_2This demonstration shows what happens when you bring a magnet near a CRT. The magnet ...
5H30.15 - Bending an Electron Beam5h3015bending_an_electron_beam_2This demonstration shows that a magnetic field can deflect a beam of moving electrons.
5H30.22 - Magnetic Deflection of Cathode Ray (E/M Tube)5h3022magnetic_deflection_of_cathode_ray_3A beam of electrons is propelled vertically. When a current is sent through the Helmholtz coils, a ...
5H40.10 - Parallel Wires (Pinching Wires)This demonstration shows the interaction of current passing through parallel wires. The wires ...
5H40.30 - Jumping WireThis demonstration shows the interaction between the moving current in a wire in the presence of a magnetic field.
5H40.71 - Rolling Rod (Ampere's Motor)This demonstration visually shows the interaction between a magnetic field and a current carrying rod.
5H50.20 - Force on a Current LoopThis demonstration shows the force on a current carrying wire loop in a magnetic field.
5J10.20 - Inductance Spark (back EMF)5j1020inductance_sparkThis demonstration shows that the current stored in an inductor will take the path of least ...
5J30.10 - RLC Ringing (LCR Trombone)5j3010The point of this demo is to show that an LCR (inductor-capacitor-resistor) circuit is a ...
5K10.20 - Induction Coil with Magnet and Galvanometer5k1020induction_coil_with_magnet_galvanometerThis demo shows that a moving magnetic field induces a current in a coil of wire, which can be ...
5K10.27 - Faraday's Flashlight5k1027faraday_flashlightThis is a "Faraday's Flashlight" as seen on TV. A magnet moves up and down inside a coil of ...
5K20.10 - Eddy Current PendulumThis demonstration shows the dampening force of a magnet on different discs. A pendulum is made to ...
5K20.20 - Eddy Currents in a Paddle5k2020eddy_currents_in_a_paddleWhen the conductive paddle is moved in the magnetic field, induced current loops (eddy ...
5K20.25 - Magnets and Eddy Tubes5k2025magnets_and_eddy_tubesThis demonstration shows the difference eddy currents have on a falling magnet in a tube ...
5K20.30 - Jumping Ring5k2030This demo shows how an aluminum ring can float around a vertical inductor. If enough current is ...
5K30.20 - Transformers5k3020transformersBy coupling two coils to each other a transformer is created.
Connect the primary to ...
5K40.10 - DC Motor5k4010dc_motorThis demonstration visually shows the interaction between magnets and coils when a current is sent through the coils.
5K40.80 - Hand Crank Generatorhand_crank_generatorThis demo shows a hand crank generator used to light up a bulb.
5L10.10 - Variable Inductance (Dimmer)5l1010variable_inductanceThis demonstration shows that a variable inductor connected in series with a light bulb will dim as the inductance is increased.
5L30.36 - High/Low Pass Filter5l3036bThis demonstration allows students to see the effects an inductor and capacitor have on an AC source.
5N10.90 - EM Wave Production (Mad Scientist Radio)5n1090bAn electrostatic generator creates EM waves that can be viewed on the oscilloscope.
5N20.10 - Induction Coil5n2010induction_coilThis is a very old tesla coil.
5N20.25 - Hand Held Tesla Coil5n2025hand_held_tesla_coilThis is a portable tesla coil. Can be used as any other tesla coil.
5N20.40 - Tesla Coil
5N20.50 - TC and Fluorescent Light
5N20.55 - Electrodeless Discharge
5N20.60 - TC and Skin Effect
This demo uses a tesla coil to illuminate a fluorescent light bulb The high frequency and high ...