1 Answer
A resistor unit is measured in **ohms** (symbol: Ω). The **ohm** is the standard unit of electrical resistance. It tells you how much a resistor resists the flow of electric current.
In simple terms:
- A **high resistance** means the resistor doesn't allow much current to pass through.
- A **low resistance** means it lets more current flow through easily.
You can think of a resistor like a bottleneck in a pipe — the bigger the bottleneck (higher resistance), the less water (current) flows through.
The **ohm** is defined as the resistance when one volt (V) of electrical potential causes one ampere (A) of current to flow. Mathematically, it's expressed like this:
\[ R = \frac{V}{I} \]
Where:
- **R** is the resistance in ohms (Ω),
- **V** is the voltage across the resistor in volts (V),
- **I** is the current passing through the resistor in amperes (A).
Does that help clarify? Let me know if you'd like more details!
In simple terms:
- A **high resistance** means the resistor doesn't allow much current to pass through.
- A **low resistance** means it lets more current flow through easily.
You can think of a resistor like a bottleneck in a pipe — the bigger the bottleneck (higher resistance), the less water (current) flows through.
The **ohm** is defined as the resistance when one volt (V) of electrical potential causes one ampere (A) of current to flow. Mathematically, it's expressed like this:
\[ R = \frac{V}{I} \]
Where:
- **R** is the resistance in ohms (Ω),
- **V** is the voltage across the resistor in volts (V),
- **I** is the current passing through the resistor in amperes (A).
Does that help clarify? Let me know if you'd like more details!