Resistor Wattage Calculator
Understanding the Resistor Wattage Calculator
The Resistor Wattage Calculator helps you determine the power dissipation and resistance of a resistor based on the voltage across it and the current flowing through it. Power dissipation in a resistor is a crucial factor to consider in circuit design to ensure that the resistor can safely handle the electrical power without overheating.
Example Calculation
Let's consider an example to understand how the Resistor Wattage Calculator works:
- Voltage (V): 12 V
- Current (I): 2 A
The power dissipation in the resistor (P) can be calculated using the formula:
Power (P) = Voltage (V) × Current (I)
And the resistance (R) of the resistor can be calculated using Ohm's law:
Resistance (R) = Voltage (V) / Current (I)
Plugging in the values: P = 12 V × 2 A = 24 W and R = 12 V / 2 A = 6 Ω.
After entering these values into the calculator and clicking "Calculate," the result should display a power dissipation of 24 W and a resistance of 6 Ω.