Ohm’s Law Calculator
What is Ohm’s Law?
Ohm’s Law is a fundamental principle in electrical engineering that describes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. It states that the current flowing through a conductor is directly proportional to the voltage across the conductor and inversely proportional to the resistance.
The law is expressed mathematically as V = IR, where V is the voltage in volts, I is the current in amperes, and R is the resistance in ohms.
How to use the Ohm’s Law Calculator?
The calculator provides input fields for four electrical parameters: Voltage (V), Current (I), Resistance (R), and Power (P). Each parameter has an associated unit selector, allowing you to choose between different magnitudes (e.g., volts, millivolts, kilovolts).
1. Entering known values
To use the calculator, you need to enter at least two known values. For example, if you know the voltage and current, enter these values in their respective fields. Make sure to select the appropriate units for each value using the dropdown menus next to the input fields.
2. Calculating unknown values
Once you’ve entered at least two known values, click the “Calculate” button. The calculator will automatically determine which values are missing and compute them using Ohm’s Law and power equations.
The calculator supports different units for each parameter. You can easily switch between units (e.g., volts to millivolts) using the dropdown menus. The calculator will automatically adjust its calculations based on the selected units.
This Ohm’s Law Calculator is useful for a wide range of applications, including:
- Designing and analyzing electrical circuits
- Troubleshooting electrical problems
- Calculating power consumption of electrical devices
- Determining the appropriate wire gauge for electrical installations
- Educational purposes for students learning about electrical principles
By providing a user-friendly interface and supporting various units, this Ohm’s Law Calculator makes it easy for both beginners and experienced users to perform quick and accurate electrical calculations. The added explanations help users understand the underlying principles, making it an excellent tool for learning and practical applications in electrical engineering and related fields.
