1 Answer
To explain **V = IR** in simple terms, let's break it down:
- **V** stands for **Voltage** (also called potential difference), which is the "push" that makes electric charges move through a circuit. It's like the pressure in a water pipe that pushes water through.
- **I** stands for **Current**, which is the flow of electric charge. You can think of it like the flow of water through the pipe.
- **R** stands for **Resistance**, which is anything that resists or slows down the flow of electric current. It's like the narrowness of a water pipe – the narrower the pipe, the harder it is for the water to flow.
### Putting it all together:
**V = IR** is **Ohm's Law**, which tells us how these three things (Voltage, Current, and Resistance) are related:
- The **Voltage (V)** across a component (like a resistor) is equal to the current (**I**) flowing through it, multiplied by its resistance (**R**).
In simpler terms:
- If you increase the voltage (more "push"), more current will flow (if the resistance stays the same).
- If the resistance increases (like making the pipe narrower), less current will flow, even if the voltage stays the same.
### Example:
If you have a **resistor** with a resistance of 5 ohms (R = 5), and you apply a voltage of 10 volts (V = 10), you can find the current using Ohm's Law:
\[ I = \frac{V}{R} = \frac{10}{5} = 2 \, \text{amps} \]
So, a current of 2 amps will flow through the resistor.
This simple relationship is key to understanding how electricity behaves in a circuit.
- **V** stands for **Voltage** (also called potential difference), which is the "push" that makes electric charges move through a circuit. It's like the pressure in a water pipe that pushes water through.
- **I** stands for **Current**, which is the flow of electric charge. You can think of it like the flow of water through the pipe.
- **R** stands for **Resistance**, which is anything that resists or slows down the flow of electric current. It's like the narrowness of a water pipe – the narrower the pipe, the harder it is for the water to flow.
### Putting it all together:
**V = IR** is **Ohm's Law**, which tells us how these three things (Voltage, Current, and Resistance) are related:
- The **Voltage (V)** across a component (like a resistor) is equal to the current (**I**) flowing through it, multiplied by its resistance (**R**).
In simpler terms:
- If you increase the voltage (more "push"), more current will flow (if the resistance stays the same).
- If the resistance increases (like making the pipe narrower), less current will flow, even if the voltage stays the same.
### Example:
If you have a **resistor** with a resistance of 5 ohms (R = 5), and you apply a voltage of 10 volts (V = 10), you can find the current using Ohm's Law:
\[ I = \frac{V}{R} = \frac{10}{5} = 2 \, \text{amps} \]
So, a current of 2 amps will flow through the resistor.
This simple relationship is key to understanding how electricity behaves in a circuit.