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class resistor:
def __init__(self, resistance: float):
self._resistance = resistance;
self.has_current(0)
def has_current(self, current: float):
self._current = current
self._voltage = current*self._resistance
def has_voltage(self, voltage: float):
self._voltage = voltage
self._current = voltage/self._resistance
def __repr__(self):
return f"Resistor with resistance {self._resistance}: current {self._current} through voltage {self._voltage}"
class parallel(resistor):
def __init__(self, r1: resistor, r2: resistor):
self._r1 = r1
self._r2 = r2
self._resistance = 1/(1/r1._resistance + 1/r2._resistance)
def _update_children(self):
self._r1.has_voltage(self._voltage)
self._r2.has_voltage(self._voltage)
def has_current(self, current: float):
self._current = current
self._voltage = current*self._resistance
self._update_children()
def has_voltage(self, voltage: float):
self._voltage = voltage
self._current = voltage/self._resistance
self._update_children()
class series(resistor):
def __init__(self, r1: resistor, r2: resistor):
self._r1 = r1
self._r2 = r2
self._resistance = r1._resistance + r2._resistance
def _update_children(self):
self._r1.has_current(self._current)
self._r2.has_current(self._current)
def has_current(self, current: float):
self._current = current
self._voltage = current*self._resistance
self._update_children()
def has_voltage(self, voltage: float):
self._voltage = voltage
self._current = voltage/self._resistance
self._update_children()
r24 = resistor(24)
r4 = resistor(4)
r12 = resistor(12)
r5 = resistor(5)
rtot = parallel( r24, series( parallel(r4,r12), r5 ) )
rtot.has_current(1)
print(r24)
print(r5)
print(r4)
print(r12)
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