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$48.60
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Demo Electric Motor
I really like the clear view the inner workings of this motor through the completely clear construction. This model of a simple DC electric motor features three armatures - 2 pole, 3 pole, and 4 pole (this is a real plus to get students to see variety in design)- all wound with enameled copper wire. A permanent magnetic field is produced by a removable bar magnet. A disc-type commutator is incorporated and external connection to the phosphor-bronze brushes is by means of a pair of 4 mm sockets. Operates on 4.5-9 VDC.
Item tags:
motor , electric, pole, demo |
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Bell in a Vacuum Jar Another classic demonstration.
Students can easily see the vibrating striker of our large electric bell ...
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$185.00 |
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