Ohm's law
1
3.5
- noun
- /oʊmz lɔ/
- Specialized
- Electrical technicians use Ohm's law to determine the correct amount of current flowing through a circuit.
Examples
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Applying Ohm's law is essential for solving problems in electrical circuits.
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Both electrical engineers and electronics technicians must know how to use Ohm's law, but both must understand when and why it must be applied—territory that appears to be best addressed by ITS.
Academic text (2018) -
In analogy with Ohm's law for electric current, or with Fourier's law for heat flow, Fick assumed that the current j is proportional to the concentration gradient, so that
Academic text (2002) -
Subsequent amplification of a magnetic field can happen in many situations, all of which are a consequence of the magnetic induction equation for plasmas that can be straightforwardly derived from the Maxwell equations and Ohm's law.
Academic text (2002) -
The formula for Ohm's law helps us understand how voltage, current, and resistance are related.
Surface Forms
Morphology
Ohm's + law
This is a proper-name label for a specific scientific principle: 'Ohm's' is the possessive of a person/unit name and 'law' denotes a general rule, but the detailed relation between current, voltage and resistance is not inferable from those parts. Named scientific laws are lexicalized technical labels whose meaning must be learned, so a B1 learner who only knows the constituent words would not be able to derive the law's content.
Etymology
Ohm's law is named after the German scientist Georg Ohm. He found a simple picture: more voltage pushes more current through a wire, but more resistance makes the current fall, so the rule explains why electricity behaves that way.