Products
Categories
Electricity And Magnetism
Floating Magnets Set, Horizontal Rotor
This device demonstrates many phenomena of physics. Place the pointed end against the glass inset and gently twirl. It is good for magnet levitation discussions and frictional force experimebnts.
Gilley Coil (Electromagnet Kit )
Experiment with induced currents, reversed polarity and magnetic lines of force. Kit includes 2, 350 turn copper coils with 2 binding posts on each coil; 1 round iron core; square iron core; 2 half-round iron cores;
"U"-shaped double core; plastic card; 4 color-coded leads with alligator clips; iron filings in reusable jar; instruction booklet. Operation requires 6 volt dry cell or lab power supply (not included)
Lodestone Stirrup
A useful support for polarity demonstration
This is a brass stirrup designed to hold a lodestone, bar magnet or friction rod horizontally so that it can spin freely when suspended from a string. Used to determine magnetic polarity.
(2" x 2 = 1/2 " x 1"; 016lb).
This is a brass stirrup designed to hold a lodestone, bar magnet or friction rod horizontally so that it can spin freely when suspended from a string. Used to determine magnetic polarity.
(2" x 2 = 1/2 " x 1"; 016lb).
DYNAMO MODEL DC
Same as per Cat. No. 8075 but DC.
Metal Terminal Only
Colored Ceramic Magnets
Ceramic magnets with only the north pole painted red. 1-1/4" (32 mm) diameter x 3/16" (5 mm) thick x 1/2" (9.5 mm) hole. Pair.
Contact Key
This key is used to open and close an electrical circuit momentarily. Excellent for demonstrating Morse code.
Current Balance
This unit is used to measure the current traveling through a conductor. To explain the reaction and its rule of a loaded conductor in the magnetic field, in order to formulate a clear conception of magnetic induction.
DC Generator
This pistol grip style handle generator can be utilized with almost any experiment requiring up to 12 Volts DC current. Housed in tough clear plastic. This unit is not only functional but costs about half of that of similar models This generator can also be used as hand generated flashlight due to the mounted lamp on the end or use the binding post to connect an outside electrical circuit.
DC Motor
This pre-assembled DC motor was designed for students to learn about electromagnetic forces. The open structure resembles the diagram found in many textbooks. Polarity of the magnets can be reversed to change the direction of rotation. The motor can also be used with a rheostat to observe the change of speed with the change of current. The DC motor can stand vertically or horizontally for best view and operates on a 1.5V battery. Size: 4.5 x 5 x 2".
Economy Wimhurst Machine
The economy wimhurst machine is used to produce static electricity easily and reliably. Voltage as high as 50,000 volts can be produced depending on humidity and other conditions as well as sparks from two and half inch up to four inches long.
Electricity & Magnetism Kit
This kit can used to demonstrate most of the principles of electricity. Supplied with an easily understood instruction manual. The kit contains the following:
1 - Voltmeter 0-1.5V, 0-3V; 1-Milliammeter 0-500mA, 0-1000mA;
1-Electroscope; 1-Battery Kit; 1-Mimi Rheostat; 2-Bar Magnet 2" length;
1-Compass needle; 2-Resistors; 1-Mini Electromagnet; 1-Horseshoe Magnet; 2-Mini Contact Switches; 2-Bulb Holders, 1-pkg. Of Iron Filings, 1-Battery Holder D-Cell; 1-Coil;
1-Coil of Wire; 1-Steel Rod Electromagnet; 1-Coil of Wire; 1-Steel Rod Electromagnet;
1-Acrylic Piece 19mm x 120mm; 2-Plastic Rods 5mm x 120mm
1 - Voltmeter 0-1.5V, 0-3V; 1-Milliammeter 0-500mA, 0-1000mA;
1-Electroscope; 1-Battery Kit; 1-Mimi Rheostat; 2-Bar Magnet 2" length;
1-Compass needle; 2-Resistors; 1-Mini Electromagnet; 1-Horseshoe Magnet; 2-Mini Contact Switches; 2-Bulb Holders, 1-pkg. Of Iron Filings, 1-Battery Holder D-Cell; 1-Coil;
1-Coil of Wire; 1-Steel Rod Electromagnet; 1-Coil of Wire; 1-Steel Rod Electromagnet;
1-Acrylic Piece 19mm x 120mm; 2-Plastic Rods 5mm x 120mm
Electricity & Magnetism Kit.
This kit can be used to demonstrate most of the principles of electricity. Supplied with an easily understood instruction manual. The kit contains the following:
1 - Voltmeter 0-1.5V,0-3V; 1-Milliammeter 0-500mA, 0-1000mA;
1-Electroscope; 1-Battery Kit; 1-Mimi Rheostat;
2-Bar Magnet 2" length; 1-Compass needle; 2-Resistors;
1-Mini Electromagnet; 1-Horseshoe Magnet;
2-Mini Contact Switches; 2-Bulb Holders,
1-pkg. Of Iron Filings, 1- Battery Holder D-Cell; 1-Coil;
1-Coil of Wire; 1-Steel Rod Electromagnet;
1-Acrylic Piece 19mm x 120mm; 2-Plastic Rods 5mm x 120mm
1 - Voltmeter 0-1.5V,0-3V; 1-Milliammeter 0-500mA, 0-1000mA;
1-Electroscope; 1-Battery Kit; 1-Mimi Rheostat;
2-Bar Magnet 2" length; 1-Compass needle; 2-Resistors;
1-Mini Electromagnet; 1-Horseshoe Magnet;
2-Mini Contact Switches; 2-Bulb Holders,
1-pkg. Of Iron Filings, 1- Battery Holder D-Cell; 1-Coil;
1-Coil of Wire; 1-Steel Rod Electromagnet;
1-Acrylic Piece 19mm x 120mm; 2-Plastic Rods 5mm x 120mm
Energy Conversion Demonstrator
To illustrate the changing of energy from one form to another with this classroom demonstration. Three energy sources are provided mounted on a board, a battery, solar cell, and DC generator, for a series of experiments and energy conversions.
Experiment Magnet Kit
This classroom kit contains 18 weak and strong magnets in bar, rod, disc, horseshoe form and compass. And It is good for classroom magnet experiment.
Floating Magnets Set, Vertical Type
1368 with 3 Ceramic Rings
1368-1 with 6 Ceramic Rings
A terrific demonstration of magnetic repulsion! Three circular magnets float above an acrylic base. The apparatus can be used to demonstrate both magnetic attraction and repulsion. Magnets are in plastic cases to reduce breakage.
1368-1 with 6 Ceramic Rings
A terrific demonstration of magnetic repulsion! Three circular magnets float above an acrylic base. The apparatus can be used to demonstrate both magnetic attraction and repulsion. Magnets are in plastic cases to reduce breakage.
HOLDER FOR D DRY CELLS
For using D flash light cell as small, low-voltage power source in the science laboratory, kits etc.
Snap-fit aluminum holder for 33mm diameter dry cells with Fahnstock clips on both sides for external connections. Provided with holes for attaching to a board or panel. Any number of cells can be connected in series or parallel.
IRON FILINGS
For observing magnetic field. Grease free filing in plastic bottles. Pack of 500g.
IRON FILINGS, MAGNETIC CHIPS
Magnetic chips in a 50 gm vial
Knife Switch, Small
Single knife single throw.
Large Iron Clad Electromagnet
A strong enamel covered electromagnet powered by four 1.5 volt C batteries. Equipped with alligator clip leads approximately 6"in length. The unit measures 75mm diameter x 260mm length. Batteries not included.
Lorentz Force Demonstrator
Demonstrates the motion of electrons in a magnetic field, and determines the charge-to-mass ratio of an electron (e/m).
Accelerating voltage is continuously variable between 0 and 250V.
Polarity of voltage on deflecting plates and polarity of electromagnet can both be reverted.
Accelerating voltage is continuously variable between 0 and 250V.
Polarity of voltage on deflecting plates and polarity of electromagnet can both be reverted.
Magnetic Molecular Demonstrator
To show magnetic field characteristic in needle type
MAGNETIC NEEDLE ON STAND (DEMONSTRATION COMPASS)
For studying magnetic phenomena such as operation of a compass, testing of magnetic poles, finding the direction of electric current etc. Consists of a magnetised steel needle about 150mm long with brass bearing pivoted on a non-magnetic metal stand. North pole is marked in red. The needle when not in use is reversed and kept in main rod for safety.
Magnetism Torch
As per magnetism principle, only moving the torch
at horizontal direction a few second, then the torch
will be light on.
Miniature Motor
Operates on 1.5V or 3V DC. 7000-11000 rpm.
Dimensions: 40mm L x 21mm D. Weight: 23 grams (0.08oz)
Dimensions: 40mm L x 21mm D. Weight: 23 grams (0.08oz)
PENCIL JOCKEY (KNIFE EDGE JOCKEY)
For wheatstone bridges and potentiometers.
A brass metal knife edge is mounted on one end of an insulated handle with a 4mm socket binding post terminal on the other end. Overall length 100mm. Pack of 10 pieces.
Plug Type Switch
Primary and Secondary Coil
Used to study electromagnetic induction & transformer principles. The outer coil is 4-1/2" tall and 2-3/4" in diameter. The inner coil is 3-3/4" tall and 1-1/4" in diameter. The removable steel core with handle is 1/2" in diameter and 5-1/2" tall. All coils are wrapped with 20 gauge magnet wire with insulated binding posts as connectors.
Separable Leyden Jar
Demonstrate storage of electrical charges! This unit is effective in helping students to understand the function of a dielectric and the buildup of static electricity. The inner and outer metal conductors are separated by a plastic insulator cup. These pieces slide easily in and out of one another. The inner conductor may be removed and the charge measured. When the conductors are replaced the charge is transferred back to them. 3 piece set.
(6-1/2" x 3-1/4" x 3-1/4"; .5lb).
SOFT IRON ROD
For uses involving changing magnetic flux in electromagnets, electric motors, generators and transformers.
Dimension (d x l), 200 X 6mm.
SOLENOID (HELIX) AIR CORE
To provide external magnetic field where required and to change the rate of magnetic flux passing through a coil.
Consists of a plastic spool with windings of insulated copper. End plates have brass binding posts. Capacity 10 amperes when used intermittently and 5 amperes when used continuously.
STEEL BALLS
As a substitute for iron filings for studying the phenomenon of magnetic fields. Form clusters and chains between unlike poles of magnets.
Polished, hardened spheres of diameter 3mm. Pack of 100.
Van de Graff Generator
This mid-size static machine can generate an electric potential of tens of thousands volts for a variety of electrostatic experiments. Comes with a shock-proof power switch and a spherical discharger.
WHEATSTONE BRIDGE, SLIDE WIRE FORM, FOUR GAPS TYPE
Improved version of simple meter bridge. For precise measurement of an unknown electrical resistance and for comparing nearly equal resistances without determination of the end-resistances.
Comprised of a hardwood base 1.1 meter long with laminated top and plastic feet. A meter long constantan resistance wire, 24swg, is stretched along a meter scale graduated in millimeters fitted on this base. Each end of the wire is firmly and precisely attached to plated copper strips. Three more copper strips are fixed parallel to the wire providing four gaps. Electric connections are made through 4mm socket binding post terminals. Supplied with a knife- edge jockey to make contact with resistance wire and the galvanometer (not supplied).
3D Magnetic Field Demonstrator
This device allows students to observe magnetic fields in the three as well as two dimensions. It consists of two half hexagonal acrylic containers with metal filings. The two parts, connected with hinges, can be swung open or closed. A strong bar magnet is placed in the concavities of the containers to reveal the cross section of a magnetic field.
4-Lamp Board
1200-6B: 4 Lamps, Acrylic Base, Small Type
1200-6 : 4 Lamps, Acrylic Base,
AC/DC Generator
With this unit both alternating & direct current can be demonstrated. By turning the handle, the current that is produced can be seen as it lights the lamp. The quicker the handle is turned the brighter the light. Each unit is cleaned & lubricated. All units are tested to make sure they meet performance standards.
Alligator Clip
309-C Alligator Clip, without Insulator, 10pc/pk
Alligator Clip
309-B Alligator Clip, with Insulator, Black/Red, 10pc/pkg
Analog Multi-Meters
DC Voltage Range: 2.5V, 10V, 50V, 500V
DC Current Range: 0.5mA, 10mA, 250mA
AC Voltage Range: 10V, 50V, 500V
Resistance Range: 10k Ohm, 1M Ohm
DC Current Range: 0.5mA, 10mA, 250mA
AC Voltage Range: 10V, 50V, 500V
Resistance Range: 10k Ohm, 1M Ohm
Banana Plug
309-D Banana Plug, Cross Patch/Stacking, Blk/Red,10pc/pk
Bar Magnets
Powerful, painted magnets excellent for student use to demonstrate magnetic properties and magnetic fields. North-south poles are marked. Sold per pair.
| SB26083M | Alnico I Bar Magnets 1/4" x 1/2" x 1-1/2" |
| 1256-2 | Alnico Bar Magnets, 1 Pair |
| SB14309M | Alnico I Bar Magnets 1/4" x 1/2" x 2" |
Bar Magnets, U Magnets
Painted red and blue to show the different polarities. Each set comes housed in a plastic storage case.
1255 Bar Steel, Painted, 6.5" x 3/4" x 3/8" in box w/keeper
1255-1 Bar Steel, Painted, 3" (75x15x10mm) in box w/keeper
1256 " U " Shape, 3", Steel, Painted, w/keeper
1255 Bar Steel, Painted, 6.5" x 3/4" x 3/8" in box w/keeper
1255-1 Bar Steel, Painted, 3" (75x15x10mm) in box w/keeper
1256 " U " Shape, 3", Steel, Painted, w/keeper
Biot?s Conductor
To demonstrate that charge resides only on outer surface of a conductor. Sphere 50mm diameter on insulated stand, complete with hemispherical cups having insulated handles.
Compass
313-2 Compass, Aluminum, Glass Cover, 45mm Dia.
313-3 Compass, Plastic, 50mm Dia.
313-4 Compass, Plastic, 35mm Dia.
313-5-1 Compass, Plastic, 40mm Dia.
MS401.2-2 Plastic Compass, Black, 45mm Dia.
Durable compass features color-coded pole markings for easier reading
313-3 Compass, Plastic, 50mm Dia.
313-4 Compass, Plastic, 35mm Dia.
313-5-1 Compass, Plastic, 40mm Dia.
MS401.2-2 Plastic Compass, Black, 45mm Dia.
Durable compass features color-coded pole markings for easier reading
Conductivity of Solutions
For showing the electrical properties of liquids. Consists of a molded socket on a PVC cover, provided with binding posts for connection of two wire cords. Two wire electrodes are internally connected to the lamp circuit. The cover is designed to fit clear glass tumbler. Light bulb, glass tumbler are provided.
315 Conductivity of Solutions, with Plastic Cup
Same as above, only with Plastic Cup instead of Glass
315 Conductivity of Solutions, with Plastic Cup
Same as above, only with Plastic Cup instead of Glass
Conductor
Made of brass on an insulated handle.
| -01 | Cone 100x50mm (Length x Max. Diameter) |
| -02 | Cylinder 125x50mm (Length x Diameter) |
| -03 | Sphere 50mm (Diameter) |
CONNECTING WIRE WITH ALLIGATOR CLIPS
PVC insulated copper wire and 50mm PVC insulated alligator clips on both ends
Connector Cords
309-1 Alligator Clip Cord, Insulated, Blk/Red, 12"
309-2 Alligator Clip Cord, Insulated, Blk/Red, 18"
309-3 Alligator Clip Cord, Insulated, Blk/Red, 24"
309-4 Alligator Clip Cord, Insulated, Blk/Red, 36"
309-5 Alligator Clip Cord, Insulated, Blk/Red, 48"
199-13 Banana plug cord, stacking/cross patch, Blk/Red,12"
199-14 Banana plug cord, stacking/cross patch, Blk/Red,18"
199-15 Banana plug cord, stacking/cross patch, Blk/Red,24"
199-16 Banana plug cord, stacking/cross patch, Blk/Red,36"
199-17 Banana plug cord, stacking/cross patch, Blk/Red,48"
199-19 Alligator/banana cord, stacking/cross patch,12"
199-20 Alligator/banana cord, stacking/cross patch,18"
199-21 Alligator/banana cord, stacking/cross patch,24"
199-22 Alligator/banana cord, stacking/cross patch,36"
199-23 Alligator/banana cord, stacking/cross patch,48"
309-2 Alligator Clip Cord, Insulated, Blk/Red, 18"
309-3 Alligator Clip Cord, Insulated, Blk/Red, 24"
309-4 Alligator Clip Cord, Insulated, Blk/Red, 36"
309-5 Alligator Clip Cord, Insulated, Blk/Red, 48"
199-13 Banana plug cord, stacking/cross patch, Blk/Red,12"
199-14 Banana plug cord, stacking/cross patch, Blk/Red,18"
199-15 Banana plug cord, stacking/cross patch, Blk/Red,24"
199-16 Banana plug cord, stacking/cross patch, Blk/Red,36"
199-17 Banana plug cord, stacking/cross patch, Blk/Red,48"
199-19 Alligator/banana cord, stacking/cross patch,12"
199-20 Alligator/banana cord, stacking/cross patch,18"
199-21 Alligator/banana cord, stacking/cross patch,24"
199-22 Alligator/banana cord, stacking/cross patch,36"
199-23 Alligator/banana cord, stacking/cross patch,48"
