Search Results for wimshurst

... (electrodes) to the two poles of the electrostatic generator. If using a Van de Graaff generator, connect one wire to the base, which is one pole, and the other wire to the top, which is the second pole. Using a Wimshurst machine, connect one wire to one Leyden jar and the second wire to another Leyden jar...

... patterns exist? Materials an electrostatic generator (either a Van de Graaff or a Wimshurst machine) grass seed heavy mineral oil petri dish electrodes Procedure Connect wires (electrodes) to the two poles of the electrostatic generator. If using a Van de Graaff generator, connect one wire...

...RELATED REFERENCES RELATED REFERENCES TPT   24 , 353 ( 1986 ) – Three demos using Wimshurst machine connected to Zn plate. 10.1119/1.2342043 TPT   26 , 492 ( 1988 ) – Chronology and apparatus description associated with Hertz discovery. 10.1119/1.2342597 TPT   26 , 581 ( 1990...

... , 353 ( 1986 ) – Three demos using Wimshurst machine connected to Zn plate. 10.1119/1.2342043 TPT   26 , 492 ( 1988 ) – Chronology and apparatus description associated with Hertz discovery. 10.1119/1.2342597 TPT   26 , 581 ( 1990 ) – Build up of image due to accumulation of photon...

... of rpm on a current of the order of 50 nA. Such currents can readily be produced with a Wimshurst machine, or extracted from a charged Leyden jar. Originally with two pairs of electrodes (four sets of pins) our machine started and ran on as little as 9 kV. The rotational speed and the current are quite...

.... WIMSHURST MACHINE The Wimshurst machine carries out charging by induction automatically. Two large insulated discs carrying symmetrically placed aluminum foil sectors are rotated about a common axis in opposite directions. The charging process is shown schematically. Suppose the sector...

... and another strip of foil around the bottle just below the shoulder of the bottle. These may be glued or taped on. Slip a bent paper clip over each foil strip to serve as a connection to clip leads coming from a Van de Graaff or Wimshurst generator. Take several straight pins and insert them through each foil...

... the motor that runs the fastest. This can be judged with competing machines being run in parallel from a common electrostatic source, such as a Van de Graaff or Wimshurst generator. If there are a number of devices, this could be organized as a double elimination style tournament. A strobe light...

... in the next two activities are not as simple to build as the projects so far, but they are relatively easy to assemble, work fairly well and provide an inexpensive alternative to the commercial Van de Graaff, Wimshurst or Dirod machines. They will NOT achieve the very high voltages of the commercial machines...

... credit course consisting of 10 class sessions of 2.5 hours per session. Following is a list of class topics for each session: WEEK 1 Static Electricity- charging by contact. charging by induction. electrophorus. Wimshurst. Van de Graaff. WEEK 2 quiz on static electricity first...

... human skin, aluminum cotton wood amber resins Brass, Cu, Ni, Co, Ag etc. rubber sulphur metals (Pt Au) celluloid India rubber The electrophorus The electrophorus demonstrates charging by induction, and the principle of electrostatic machines, such as the Wimshurst machine...

... color.) Attach a pair of electrodes to a Wimshurst machine and immerse the electrodes in the mineral oil. The electrodes may be small rods, parallel plates, or various combinations of these shapes. When the machine is operated, the flock will line up with the configuration of the electric field present...