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  • Electromagnet Experiment

    Model: YZQ-PHE002
    1. Size: 3*8CM
    2. About electromagnet
    An electromagnet is a device that generates electromagnetic energy when electricity is applied. A conductive winding matching its power is wound around the outside of the body. This coil with current flowing through it has magnetism like a magnet.
    It is also called an electromagnet (ELECTROMAGNET). We usually make it into a bar or hoof shape to make the iron core easier to magnetize.

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  • Physical electrical experiment box circuit series parallel

    Model: YZQ-PHE003
    Specifications: 9*14*3.5CM
    Material: Plastic/Plastic

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  • Pinhole Imaging Convex Lens Imaging Optical Bench F-Type Light Source

    Model: YZQ-PHE001
    1. Material: Metal Plastic
    2. Size: 10*55*12.5CM
    3. How to use the optical stand
    1. Adjust the object distance to be greater than twice the focal length, then move the light screen to explore the image size and properties.
    2. Adjust the object distance to be greater than the focal length experiment and less than twice the focal length experiment to explore the imaging situation.
    3. Adjust the object distance to be less than the focal length, move the light screen to observe whether there is an image. Convex lens parameters: 3cm focal length 5cm / 4cm focal length 10cm / 5cm focal length 15cm
    Concave lens parameters: 3cm focal length -7.5cm / 4cm focal length -10cm / 5cm focal length 10cm

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