ohm.py

Created by vnap0v

Created on May 26, 2025

1.39 KB

This ‘Ohms law helper’ allows you to type the two known variables with the unit added for example 5V or 0.1A or 10000ohm and the script automatically calculates the third variable which was unknown. Uses no imported libraries, also runs in CPython on a PC. Tested on the calculator using software version 23.2.6.

V=None;I=None;R=None
def determine(x):
  global V,I,R
  x=x.upper()
  if x.endswith("V"):
    x=x.replace("V","")
    V=float(x)
    return "voltage"
  elif x.endswith("A"):
    x=x.replace("A","")
    I=float(x)
    return "current"
  elif x.endswith("OHM"):
    x=x.replace("OHM","")
    R=float(x)
    return "resistance"
 
def ohmlaw():
  global V,I,R
  print("Ohms law helper")
  print("Enter voltage or current")
  print("or resistance")
  print("ex. 5V or 0.1A or 1000Ohm")
  answer=input()
  vartype1=determine(answer)
  if vartype1=="voltage":
      answer=input("Enter current or resistance\n")
      vartype2=determine(answer)
      if vartype2=="current":
        R=V/I
        print("Resistance: ",R,"Ohm")
      elif vartype2=="resistance":
        I=V/R
        print("Current:",I,"A")            
  elif vartype1=="current":
      answer=input("Enter voltage or resistance\n")
      vartype2=determine(answer)
      if vartype2=="voltage":
        R=V/I
        print("Resistance:",R,"Ohm")
      elif vartype2=="resistance":
        V=R*I
        print("Voltage:",V,"V")                     
  elif vartype1=="resistance":
      answer=input("Enter voltage or current\n")        
      vartype2=determine(answer)
      if vartype2=="voltage":
        I=V/R
        print("Current:",I,"A")
      elif vartype2=="current":
        V=R*I
        print("Voltage:",V,"V")  

ohmlaw()