What is an Ohm's Law Calculator?

An Ohm's Law Calculator is a tool used to calculate the relationship between voltage, current, and resistance in an electrical circuit, as defined by Ohm's Law. Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the resistance between them. The law is summarized by the equation \( V = I \times R \), where \( V \) is voltage in volts, \( I \) is current in amperes, and \( R \) is resistance in ohms.


How to Use the Calculator

  1. Input Two Values: Enter any two of the three values (voltage, current, resistance) in their respective fields.
  2. Leave One Field Blank: Leave the field for the value you want to calculate blank.
  3. Calculate: Click the 'Calculate' button to find the missing value.
  4. View Result: The calculator will display the calculated value (either voltage, current, or resistance).

Applications

This calculator is valuable for students, electricians, and engineers in fields such as electronics and electrical engineering. It assists in designing circuits, troubleshooting, and educational purposes, providing quick calculations and insights into the relationship between voltage, current, and resistance in a circuit.

Considerations

Ensure that the values entered are in the correct units (volts for voltage, amperes for current, and ohms for resistance). It's important to remember that Ohm's Law applies to linear, ohmic components where the resistance remains constant.