SI Units

Ohm

Tanım

Bir volt potansiyel farkının bir amper akım oluşturduğu dirence eşit SI elektrik direnci birimi (1 Ω = 1 V/A).

Açıklama

Named after Georg Simon Ohm, who formulated Ohm's law (V = IR). A standard LED circuit resistor is typically 220–470 Ω; a human body's resistance ranges from 1,000 Ω (wet skin) to 100,000 Ω (dry skin). Resistors in series add directly: two 100 Ω resistors in series equal 200 Ω.

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Işığın 1/299.792.458 saniyede aldığı yola eşit olan SI uzunluk temel birimi.

Kilogram

Planck sabiti temel alınarak tanımlanan SI kütle temel birimi.

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Sezyum-133 atomunun titreşimine dayalı olarak tanımlanan SI zaman temel birimi.

Kelvin

Mutlak sıfırdan başlayan SI sıcaklık temel birimi.

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SI elektrik akımı temel birimi.