Understanding Ohm's Law
Ohm's Law is a fundamental principle in electrical engineering and physics that describes the relationship between voltage, current, and resistance in an electrical circuit. It states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points.
The Ohm's Law Formula
The relationship is expressed in the simple and powerful equation:
$$V=I \times R$$
- Vstands for Voltage, the potential difference across the conductor, measured in Volts (V).
- Istands for Current, the rate of flow of electric charge, measured in Amperes (A).
- Rstands for Resistance, the measure of opposition to the current flow, measured in Ohms (Ω).
Worked Example
Let's say you have a circuit with a current of 0.5 Amperes (A) and a resistance of 24 Ohms (Ω). To find the voltage, you would use the formula:
$$V=0.5 \text{ A} \times 24 \text{ Ω}=12 \text{ V}$$
The voltage in the circuit is 12 Volts.
How to Use the Calculator
This calculator is designed to be simple and dynamic. You can solve for any of the three variables.
- Enter Known Values:Fill in any two of the three fields (Voltage, Current, or Resistance).
- Select Units:Choose the appropriate unit for each value you entered.
- View Instant Result:The calculator will automatically compute the value for the one field you left blank. The result field will be highlighted and become read-only.
- See the Solution:A detailed, step-by-step breakdown of the calculation will appear below the calculator.
- Clear Fields:To start a new calculation, click the "Clear" button.
