1 Answer
The **ohm** (symbol: Ω) is the unit of **electrical resistance**. It measures how much a material resists the flow of electric current.
1 ohm is defined as the resistance that allows 1 ampere of current to flow when a voltage of 1 volt is applied across the material. Mathematically, this relationship is described by Ohm’s Law:
\[
R = \frac{V}{I}
\]
Where:
- \(R\) is the resistance in ohms (Ω),
- \(V\) is the voltage in volts (V),
- \(I\) is the current in amperes (A).
So, the ohm tells you how much a material resists the flow of electricity.
1 ohm is defined as the resistance that allows 1 ampere of current to flow when a voltage of 1 volt is applied across the material. Mathematically, this relationship is described by Ohm’s Law:
\[
R = \frac{V}{I}
\]
Where:
- \(R\) is the resistance in ohms (Ω),
- \(V\) is the voltage in volts (V),
- \(I\) is the current in amperes (A).
So, the ohm tells you how much a material resists the flow of electricity.