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.
According to Joule's law of heating, heat produced in a resistor is expressed by which relation?
Electrical conductors are materials that possess which of the following properties?
When considering the dimensions of electric charge, which fundamental units must be combined to express it in terms of SI base quantities?
What change occurs in the amount of heat produced when the electric current in a conductor is doubled?
If you measure the amount of electric charge flowing in a circuit, which SI unit would you use to record the result?
The property of electric current which is applicable in the fuse wires is
An electric current is expressed by a unit called .
What do you call a component of identical size that offers a higher resistance to electricity?
Identify the correct statement.
_______ is a simple device that is used to either break the electric circuit, or to complete it.