Physical experimental equipment teaching equipment 20g*10 computation weigh metal slotted weight

-2%

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-0.3%

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-7%

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-2%

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-4%

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-6%

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-3%

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-0.4%

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-4%

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-4%

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-2%

Weight 500g weight for balance of physics and mechanics experimental teaching equipment

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Physical experimental equipment teaching equipment simple pendulum group five simple pendulum ball free shipping

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-0.5%

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-9%

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-4%

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-5%

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-1%

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-1%

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-3%

Incomplete data

Hand-cranked generator power supply type electrical physics experimental equipment physical and electrical teaching equipment

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-0.6%

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-7%

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-0.9%

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-2%

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-7%

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-5%

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1

-9%

Adjustable sliding rheostat 10 ohm 2a physical experimental equipment teaching instruments

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-8%

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-5%

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1

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Incomplete data

Sliding rheostat 2a20ω junior physical and electrical experimental equipment adjustable resistance secondary teaching equipment

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Physical experimental equipment electrical teaching equipment equipotential line describe demonstrator

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-6%

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-4%

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-2%

Triangular prism physical optics experimental equipment, spectroscopic dispersion refraction teaching

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-2%

Sliding rheostat 200 ohm 1.25a adjustable resistance electrical experimental teaching equipment

1

2

5.0