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| Magnets & Magnetism |
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| Current Balance | ||||||||||||||||||||||||||||
 P63303 |
This unit is used to demonstrate the force on a conductor carrying a current in a magnetic field. It is also used to investigate the factors which determine the magnitude of this force. Instruction manual included. |
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| Lenz's Law Apparatus | ||||||||||||||||||||||||||||
Consists of two metal rings connected by an aluminum beam that can rotate freely on a support. One of the rings is a closed loop; the other has an opening for comparison. When a bar magnet moves into or out of the loop the magnetic flux will change. According to Lenzs law, a current will be induced in the loop to oppose the change. Students can verify the law by analyzing the movement of the loop. Comes with a comprehensive activity manual. Unit measures 8x6x3. |
 P64301 |
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| Primary & Secondary Coils | ||||||||||||||||||||||||||||
 P63301 |
 P63302 |
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These units are ideal for the study of electro-magnetic induction & transformer principles. Units consists of a soft iron armature, a heavy wire primary coil, and a fine wire secondary coil. Used with a galvanometer to demonstrate the existence and direction of induced current in a magnetic field. The metal core is used to change the strength of the field. Comes complete with a student activity manual. |
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| "U" Shaped Electromagnet | ||||||||||||||||||||||||||||
 P64103 |
Operates on 1.5 to 6 V DC. Lifts up to 3500g. With current direction indicator for the study of magnetic field. Dimensions: 12 x 12 x 4 cm. Weight: 14 oz. |
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| Magnetism Kits | ||||||||||||||||||||||||||||
This kit will demonstrate all of the major principles of electricity in physics, such as electromagnetism, resistance, chemical energy, static electricity, etc. Comes with an activity manual which explains, in detail, how to perform over 37 different activities. Housed in a convenient plastic storage case. |
 P58001 |
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This kit is designed for elementary through high school students to learn the principles and applications of electromagnets. Includes two coils on plastic spools, a U shape iron core, a straight iron core, two magnetic needles with stands, and a pair of wires. Students can build a bar and a U shape electromagnet with a 6V battery or DC power supply, and determine the magnitude and polarity of electromagnetic forces. Comes in a 5x5x1.5 plastic case and weighs 7oz. Instruction manual included. |
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| "U" Shaped Magnets | ||||||||||||||||||||||||||||
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Steel U-shaped magnet with two-color paint. North and South poles are identified with letters. Small magnet measures 3X2X5/8 and weighs 0.4 lb; lifts up to 2 lbs. Large magnet measures 4-1/4X3X1-1/4 and weighs 1.8 lbs; lifts up to 5.5 lbs. Pole gap is 14mm for both models. |
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| Bar Magnets | ||||||||||||||||||||||||||||
A pair of steel magnets painted red and white to show the different polarities. Each set comes housed in a plastic storage case. |
 P55011 |
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| Stirrup | ||||||||||||||||||||||||||||
 P55101 |
Allow a bar magnet or friction rod to turn freely in the horizontal plane to determine polarities or detect fields. Hooks are about 9 cm apart. |
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| Magnetic Wands | ||||||||||||||||||||||||||||
Strong ceramic magnets sealed in unbreakable colorful plastic cases. North and South poles are located on opposite faces for ease of use. Can be used to determine if an object is magnetic. A pair of magnetic wands can be used to demonstrate attraction and repulsion between poles. 7.5 x 1. |
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| Magnetic Marbles | ||||||||||||||||||||||||||||
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Strong spherical ceramic magnets. Each marble has two hidden poles for students to reveal with experiments Can be used alone or with magnetic wands to study the properties of magnets. 5/8 diameter. |
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| Magnetic Needle Set | ||||||||||||||||||||||||||||
This is an excellent set to demonstrate the different magnetic fields within a given area. The set includes 10 needles and 10 5/8 high bases. |
 P83004 |
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| Compass | ||||||||||||||||||||||||||||
 P83001 |
 P83003 |
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 P83005 |
 P83006 |
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 P83007 |
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| Magnetic Field Demonstration | ||||||||||||||||||||||||||||
 P64202 |
This device allows students to observe magnetic fields in three as well as two dimensions. Consists of two half hexagonal acrylic containers with metal filings. The two parts, connected with hinges, can be swung open or close. A strong bar magnet is placed in the concavities of the containers. This unique construction can reveal the cross section of a magnetic field. Measures 5 x 5x 5. Weighs 1.5 lbs. |
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 P64201 |
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A quick and clean way to visualize magnetic fields. The unit is a transparent acrylic case that holds iron filings in a fluid of proper viscosity. The unit can also be placed on an overhead projector for classroom demonstration. Measures 8 x 4 1/2 x 3/8. 11oz. |
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