This tool calculates the current (I) in Amperes. Enter the values of

- Resistance in Ohm
- Voltage in Volt

## Formula

**I = V/R**

This is also known as Ohm’s law which states that *the current through a conductor (I) with a constant resistance (R) between two points is directly proportional to the voltage (V) across the two points*.

Ohm’s Law is the cornerstone of electrical circuits, explaining the relationship between **voltage (V)**, **current (I)**, and **resistance (R)**. It’s a simple yet powerful formula that helps in designing, troubleshooting, and understanding electrical circuits.

**Example Calculation**

For a voltage value of 5 Volt and resistor value of 2 ohm, the current through the resistor is 2.5 Amperes or Amps.

**Real-World Applications of Ohm’s Law**

**Home Electrical Circuits**: Ohm’s Law is used to design safe home electrical systems. For instance, electricians calculate the current that will flow through appliances to ensure the wiring can handle the load without overheating.**Device Troubleshooting**: Technicians use Ohm’s Law to troubleshoot electronics. If a device isn’t functioning properly, measuring the voltage and current can help diagnose faulty components.**Battery Performance**: When designing batteries, engineers use Ohm’s Law to calculate the voltage needed to power a device without overloading it.

**Important Considerations:**

- If there are multiple resistors in the circuit, calculate the
**total resistance**based on their configuration (series or parallel). - The power dissipated by the resistor can also be calculated using the formula P = I
^{2}× R_{P}, where P is power in watts (W).