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Vacuum Bell Jar

Vacuum Bell Jar is a modified unit which does not require external power source for the bell. Comes complete with Bell Jar, Bell which requires 2 D batteries (not included), Vacuum Pump Plate. Assembled unit is 7.5 in. (190mm) x 11 in. (280mm) Diameter x Height. Perfect for isolating experiments from outside interference or studying the Properties of Matter in a Vacuum. This Bell jar is for use in only Physics Experiments to teach Science.

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Demountable Transformer Coil Winding

Specifications of Demountable Transformer Coil Winding:
Overall size :150*120*120mm
Product Weight:1kg
Coil 400 800 and 1600
Set of 5 sets with different turns can have relative voltage of output by plug a 6000 turn primary coil into main power.

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Air Core Solenoid Coil

Air core solenoid coil with multi selectable turns, show student the magnet field tension changes when the turn of the coils differ.

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Precision Current Balance

Specifications of Precision Current Balance:
Base:310x160x10mm
Hollow Solenoid: Inner diameter is 41mm, lenth is 160mm
Roll with 600 circles thick enameled wire, dia is 1.2mm
Windsheild:clear , 120mmx90mmx90mm, 1pc
circle titlle wieghts: Print the mark of weights,Each is 7mg, 20pcs/box

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Tesla Coil

A Tesla coil is an electrical resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high-voltage, low-current, high frequency alternating-current electricity.Tesla experimented with a number of different configurations one fundamental principal Teslar find is :Wireless power transmission . Today widely used like cordless battery recharge

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Primary and Secondary Coil

Primary and Secondary Coil is mainly used for teachers to demonstrate electromagnetic induction and verify Lenz’s law in middle school physics. Coil Experiment with Transformer Principles and Induction! 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.

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