SI Units

Coulomb

Definisi

Satuan SI untuk muatan listrik, didefinisikan sebagai muatan yang dibawa arus satu ampere dalam satu detik (1 C = 1 A·s), setara dengan muatan sekitar 6,242×10¹⁸ muatan elementer.

Penjelasan

Named after Charles-Augustin de Coulomb. A standard AA battery holds roughly 9,000–10,000 coulombs of charge. The elementary charge of one electron is 1.602×10⁻¹⁹ coulombs — meaning one coulomb represents about 6.24 billion billion electrons. Phone battery capacity is measured in milliamp-hours (mAh); a 3,000 mAh battery stores 3 A × 3,600 s = 10,800 C.

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RELATED TERMS

Meter

Satuan dasar panjang dalam SI, didefinisikan sebagai jarak yang ditempuh cahaya dalam 1/299.792.458 detik.

Kilogram

Satuan dasar massa dalam SI, didefinisikan berdasarkan konstanta Planck.

Detik

Satuan dasar waktu dalam SI, didefinisikan berdasarkan atom sesium-133.

Kelvin

Satuan dasar suhu dalam SI, dimulai dari nol mutlak.

Ampere

Satuan dasar arus listrik dalam SI.