Law Physics Electromagnetism

What does Ohm's law define?

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What does Ohm's law define?

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Ohm's Law defines the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. It states that:

The current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them.

This relationship is commonly expressed in the following equation:

V = I * R

  • Where:
    • V is the voltage in volts.
    • I is the current in amperes.
    • R is the resistance in ohms.

In simpler terms, Ohm's Law explains how much current will flow through a circuit given a certain voltage and resistance. It's a fundamental principle in electrical engineering.

For more information, you can refer to these resources:

  1. All About Circuits - Ohm's Law
  2. Electronics Tutorials - Ohm's Law
Wrote answer · 3/14/2025
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