SKU: 37224027773

Hand Start Crank AC/DC Generator Electromagnetics Scientific Physical Toy

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Description

Hand Start Crank AC/DC Generator Electromagnetics Scientific Physical ToyHand Start Crank AC DC Generator Electromagnetics Scientific Physical ToyFeatures:. Mainly composed of stator, rotor, brush, rotating mechanism, base plate, etc. . Demonstrate the working principle of the single phase alternator: first contact the two brushes with the copper ring, and rotate the rotor (armature) to make the coil move in the magnetic field. If the coil is combined with the external circuit power generation board, it is closed Circuit,

Hand Start Crank AC/DC Generator Electromagnetics Scientific Physical Toy

Features:


.Mainly composed of stator, rotor, brush, rotating mechanism, base plate, etc.

.Demonstrate the working principle of the single-phase alternator: first contact the two brushes with the copper ring, and rotate the rotor (armature) to make the coil move in the magnetic field. If the coil is combined with the external circuit power generation board, it is closed Circuit, that is, the output of sinusoidal alternating current that changes periodically with time. If you connect a galvanometer in series with the circuit and slowly rotate the armature, you can see that the magnitude and direction of the alternating current generated periodically change

.Demonstrate the working principle of a single-phase DC generator: During the demonstration, the two brushes and two half-copper rings should be contacted respectively, and the armature is rotated. The alternating current generated in the coil is rectified by the copper half-ring to obtain direct current. At this time, the red light is on, the green light is off or the green light is on, and the red light is off. If you connect an ammeter in series with the circuit, you can see the DC output at this time
.Suitable for children over 8 years old
.Technical Indicators:

1. When the rotor speed is 1200-1600/min, the output voltage of the machine, no-load current;

2. The voltage is not less than 6V, and the load voltage is not less than 3V, 0, 3A.


.Note:

1. When demonstrating, pay attention to the pressing of the brush and slip ring;

2. When the instrument is not in use, the "O" belt should be removed and stored, and at the same time, be careful not to contact with oil or sun exposure. In order to increase the service life of the belt; always pay attention to the proper lubrication of the bearing.

Specifications:

.Color: As Shown
.Material: MDF + Magnet + Metal + Components
.Product Dimensions: 29.5 x 16.5 x 17.5cm
.Product Weight: 1000g
.Package Dimensions: 30 x 17 x 11cm
.Package Weight: 1450g
.Packing: Carton Box

Package Content:

.1 x Educational Toy

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SKU: 37224027773

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Corina Mendoza
San Leandro, US
★★★★★ 1
Save your money
Color: Black with Silver
Worked great the first few times and now it doesn’t work at all. It is charged and runs! It just doesn’t cut the cans open. Since I don’t eat a lot of can goods I missed the return window. Save your money!
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Reviewed in the United States on May 10, 2026
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CLT
Dallas, US
★★★★★ 5
It heats well.
Finally a warmer that actually keeps my coffee piping hot. This has three settings which is nice for whatever it is you want to keep warm ie; coffee or wax or even crafting. I bought this for my office desk because I get disrupted so my coffee or tea gets cold when I’m busy. I love that it has an auto shut off after 4 hours. 5 stars from me. UPDATE: I LOVE this warmer. This baby gets hot I have to turn down the temp from red to blue. I love that it shuts off after 4 hours. I recommend this.
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Reviewed in the United States on January 6, 2025
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Utah Shopper
San Leandro, US
★★★★★ 4
Nice hand can opener
Color: Black with Silver
Larger than my previous one but works great. I haven't had to use the cord provided to charge it, but I doubt it would be a problem.
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Reviewed in the United States on May 6, 2026
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Veronica
Fort Morgan, US
★★★★★ 5
Electric can opener
Color: Black with Silver
I bought this in February I barely used it and now doesn't work
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Reviewed in the United States on May 28, 2026
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Verified Purchase
cheryl miller
Grantham, US
★★★★★ 1
louzy can openers
Color: Black with Silver
both can openers failed after 4-6 cans opened. i threw the first one in the garbage and ordered another one. i wi;ll shop at kohls or target for my stuff. two should have not failed. your owner jeff bezos should check into products he sells.i have this last one and opened two can and doesnt work anymore.buy stuff from the us and not china and japan. its garbage,i am a senior on a fixed income.
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Reviewed in the United States on May 21, 2026

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