Build A Better Battery Pack Our each is (4) of the blue plastic "D" Cell modular battery holders, approx 3-3/8" x 1-7/16" x 1-1/8" deep without tabs. Plastic D Cell Battery Holder slides together either side-to-side or end-to-end or any combination of both, with connecting tabs in both directions. Can be wired parallel or in series. Open tops. Interesting possibilities.
Read MoreSend InquiryBattery 4 D Cell Battery holder series high quality , moden design export to USA and EU, very good for lab and teaching use
Read MoreSend InquiryLenz Law Apparatus consists of two metal rings conected 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 magnetic flux will change.According to Lenz's 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 8"x6"x3".
Read MoreSend InquiryDescription of Electric Connecting Cord:
1. Length will be 50 cm or 100cm
2. Cable’s conductor cross section will be at least 0,75 mm² .
3. Cable will be multi-core and plastic-insulated.
4. Plug will have nickel plated edges with 4 mm arc printing
5. Cable and plug insulation will be the same color.
6. The connection cables will be an equal number of red and black colors.
Electrostatic Plume is used for teacher to demonstrate electric field line experiment and for student to study experiment about static electricity. It consists of circular base, support and silk thread, two pieces for one set.
Read MoreSend InquiryOur Gold Foil Electroscope has several features which set it apart from lesser versions, making it an excellent addition to classrooms in which it will be used frequently. The metal case is durable and strong, capable of resisting accidents and breakage. The glass panels slide out to facilitate replacement of ripped gold leaves, and the back panel is frosted, lending some aesthetic appeal. There is also a scale inside which makes comparative measurements simpler. Lastly, the electroscope has a grounding connector on the side of the box. Excellent quality, perfect for physics demonstrations.
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