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How to compute resistor value from voltage and power in Python using UliEngineering

You can easily compute the required resistor value given voltage and power dissipation using the UliEngineering Python library:

resistor_value_by_voltage_and_power.py
from UliEngineering.Electronics.Resistors import *
from UliEngineering.EngineerIO import *

# Compute resistor for 5V at 1W
resistor = resistor_value_by_voltage_and_power("5V", "1W")
print(f"Resistor for 5V at 1W: {format_value(resistor, 'Ω')}")

# Compute resistor for 12V at 0.5W
resistor = resistor_value_by_voltage_and_power("12V", "0.5W")
print(f"Resistor for 12V at 0.5W: {format_value(resistor, 'Ω')}")

Example output

resistor_value_by_voltage_and_power_output.txt
Resistor for 5V at 1W: 25.0 Ω
Resistor for 12V at 0.5W: 288 Ω

The resistor value is computed using the formula: $R = \frac{V^2}{P}$

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