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2. Tesla coil - Wikipedia

   en.wikipedia.org/wiki/Tesla_coil

   Once the gap fires, the electrical behavior of either circuit is identical. Experiments have shown that neither circuit offers any marked performance advantage over the other. However, in the typical circuit, the spark gap's short circuiting action prevents high-frequency oscillations from 'backing up' into the supply transformer.

3. Raytheon Lectron - Wikipedia

   en.wikipedia.org/wiki/Raytheon_Lectron

   The instruction manual gave instruction on the proper arrangement of the blocks as well as the function of each individual component's contribution to the final circuit. Experiments began with simple circuits such as a basic electric lamp circuit with switch and worked its way to a three-transistor radio with loudspeaker.

4. Oersted's law - Wikipedia

   en.wikipedia.org/wiki/Oersted's_law

   The magnetic field (marked B, indicated by red field lines) around wire carrying an electric current (marked I) Compass and wire apparatus showing Ørsted's experiment (video [1]) In electromagnetism , Ørsted's law , also spelled Oersted's law , is the physical law stating that an electric current induces a magnetic field .

5. Snap Circuits - Wikipedia

   en.wikipedia.org/wiki/Snap_Circuits

   An AM radio made from a Snap Circuits kit. Snap Circuits is a line of electronic kits manufactured by Elenco Electronics and aimed at children eight years and older. [1] The kits come in a variety of sizes, and may include capacitors, diodes, electric motors, lamps, LEDs, radios, electromagnets, speakers, resistors, transformers, transistors and voltmeters.

6. List of experiments in physics - Wikipedia

   en.wikipedia.org/wiki/List_of_experiments_in_physics

   Pictet's experiment: Marc-Auguste Pictet: Demonstration Thermal radiation: 1797 Cavendish experiment: Henry Cavendish: Measurement Gravitational constant: 1799 Voltaic pile: Alessandro Volta: Demonstration First electric battery: 1803 Young's interference experiment: Thomas Young: Confirmation Wave theory of light: 1819 Arago spot experiment ...

7. Lemon battery - Wikipedia

   en.wikipedia.org/wiki/Lemon_battery

   The Nernst equation prediction failed for strongly acid electrolytes (pH < 3.4), when the zinc electrode dissolves into the electrolyte even when the battery is not providing any current to a circuit. The two oxidation-reduction reactions listed above only occur when electrical charge can be transported through the external circuit.