The quantity represented by the unit volt per ampere corresponds to which electrical unit?
Ohm
By Ohm's law, the potential difference V across a conductor equals the product of current I flowing through it and its resistance R: \(V = IR\).
Rearranging gives \(R = \dfrac{V}{I}\), so resistance is measured in volt per ampere.
The SI unit of electrical resistance is the ohm, symbol \(\Omega\), defined exactly as \(1\,\Omega = 1\,\text{V}/\text{A}\).
Coulomb is the unit of electric charge (ampere-second), watt is the unit of power (joule per second) and joule is the unit of energy, so they do not match volt per ampere.
Hence, volt per ampere is the ohm.
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