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* capacitor equivalence algorithm * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Apply suggestions from code review * Update capacitor_equivalence.py --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>
54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
# https://farside.ph.utexas.edu/teaching/316/lectures/node46.html
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from __future__ import annotations
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def capacitor_parallel(capacitors: list[float]) -> float:
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"""
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Ceq = C1 + C2 + ... + Cn
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Calculate the equivalent resistance for any number of capacitors in parallel.
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>>> capacitor_parallel([5.71389, 12, 3])
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20.71389
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>>> capacitor_parallel([5.71389, 12, -3])
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Traceback (most recent call last):
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...
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ValueError: Capacitor at index 2 has a negative value!
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"""
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sum_c = 0.0
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for index, capacitor in enumerate(capacitors):
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if capacitor < 0:
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msg = f"Capacitor at index {index} has a negative value!"
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raise ValueError(msg)
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sum_c += capacitor
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return sum_c
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def capacitor_series(capacitors: list[float]) -> float:
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"""
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Ceq = 1/ (1/C1 + 1/C2 + ... + 1/Cn)
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>>> capacitor_series([5.71389, 12, 3])
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1.6901062252507735
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>>> capacitor_series([5.71389, 12, -3])
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Traceback (most recent call last):
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...
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ValueError: Capacitor at index 2 has a negative or zero value!
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>>> capacitor_series([5.71389, 12, 0.000])
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Traceback (most recent call last):
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...
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ValueError: Capacitor at index 2 has a negative or zero value!
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"""
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first_sum = 0.0
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for index, capacitor in enumerate(capacitors):
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if capacitor <= 0:
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msg = f"Capacitor at index {index} has a negative or zero value!"
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raise ValueError(msg)
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first_sum += 1 / capacitor
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return 1 / first_sum
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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