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U-Magnet, Chrome-Steel, 75 x 7 mm
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$
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Red or black scratch-resistant paint. Pole faces are ground to make the magnets free-standing. Complete with keeper. Size (L × W × T): 75 × 75 × 19mm. Pole gap 42mm.
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U-Magnet, Chrome-Steel, 98 x 60 mm
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$
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(See 2401A for photo.) Red or black scratch-resistant paint. Pole faces are ground to make the magnets free-standing. Complete with keeper. Size (L × W × T): 98 × 60 × 15mm. Pole gap 42mm.
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U-Magnet, Chrome-Steel, 140 x 78 mm
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$
0.00
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(See 2401A for photo.) Red or black scratch-resistant paint. Pole faces are ground to make the magnets free-standing. Complete with keeper. Size (L × W × T): 140 × 78 × 19mm. Pole gap 50mm.
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Electromagnet, Compact
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$
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Demonstrates electromagnetic power due to flow of electric current. Consists of two parts, core and yoke, each fitted with a heavy, steel eyebolt. Generates a large amount of lifting power. Powered by two AA batteries (not included), which are connected to the coil by crocodile clips. Battery holder mounted on top of core. Can lift to 145lbs. With instructions.
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Electromagnet, Iron-Clad, Large
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$
0.00
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Similar to no. 2560, but larger and heavier. Powered by four 1.5-V "C" batteries (not included). Can lift to 220lbs. With instructions.
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Gilley Coil
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$
0.00
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For demonstration of phenomena related to electromagnetism and electromagnetic induction, such as polarity of electromagnets, magnetic lines of forces, self and mutual induction, principle of transformer, relationship between directions of magnetic lines of force and direction of flow of electric current in a coil, effect of introducing core on electromagnetism, etc. Kit consists of a pair of coils wound on saddle-shaped, plastic bobbins with connection terminals; one each round and rectangular iron bar; pair of semi-circular iron strips; one U-shaped iron core; four differently-colored connecting leads with crocodile clips; iron fillings; and one card with a rectangular window. With instructions.
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Oersted's Law Apparatus
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$
0.00
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Demonstrates the action of electric currents on a magnet. A magnetic needle freely moves on a pivot carried at the top of an insulating pillar on a heavy, enamel-painted base. Needle surrounded by a non-magnetic, rectangular frame of aluminum strip. Pair of 4mm socket terminals provided for passing current. A third terminal provided at the other end to change the direction of the current and the section through which the current flows.
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Primary-Secondary Coil
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$
0.00
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For studying electromagnetic induction and the principle of transformer. Consists of two coils—the Primary, with thicker gauge and lesser number of turns, and the Secondary, with thinner gauge and greater number of turns. The Primary slides into the Secondary. Also included is a soft, iron core that can be inserted into the Primary. Socket terminals in both coils for connections. With instructions.
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