Apply Electrical Impedance formula, on any two given electrical values, which can be resistance, reactance, and impedance, and then in a Python dict return name/value pair of the zero value. >>> electrical_impedance(3,4,0) {'impedance': 5.0} >>> electrical_impedance(0,4,5)
(
resistance: float, reactance: float, impedance: float
)
| 10 | |
| 11 | |
| 12 | def electrical_impedance( |
| 13 | resistance: float, reactance: float, impedance: float |
| 14 | ) -> dict[str, float]: |
| 15 | """ |
| 16 | Apply Electrical Impedance formula, on any two given electrical values, |
| 17 | which can be resistance, reactance, and impedance, and then in a Python dict |
| 18 | return name/value pair of the zero value. |
| 19 | |
| 20 | >>> electrical_impedance(3,4,0) |
| 21 | {'impedance': 5.0} |
| 22 | >>> electrical_impedance(0,4,5) |
| 23 | {'resistance': 3.0} |
| 24 | >>> electrical_impedance(3,0,5) |
| 25 | {'reactance': 4.0} |
| 26 | >>> electrical_impedance(3,4,5) |
| 27 | Traceback (most recent call last): |
| 28 | ... |
| 29 | ValueError: One and only one argument must be 0 |
| 30 | """ |
| 31 | if (resistance, reactance, impedance).count(0) != 1: |
| 32 | raise ValueError("One and only one argument must be 0") |
| 33 | if resistance == 0: |
| 34 | return {"resistance": sqrt(pow(impedance, 2) - pow(reactance, 2))} |
| 35 | elif reactance == 0: |
| 36 | return {"reactance": sqrt(pow(impedance, 2) - pow(resistance, 2))} |
| 37 | elif impedance == 0: |
| 38 | return {"impedance": sqrt(pow(resistance, 2) + pow(reactance, 2))} |
| 39 | else: |
| 40 | raise ValueError("Exactly one argument must be 0") |
| 41 | |
| 42 | |
| 43 | if __name__ == "__main__": |