Resistance Distance Series-Parallel

Problem

Combine resistances with the series and parallel laws.

series is a list of resistances connected in series, and parallel_groups is a list of groups where each group is connected in parallel; the groups themselves are in series with the first list. Return the total resistance.

Hint

Series resistances add; parallel conductances add.

Test cases

case 1

in: [[2,3],[[6,3]]]

expected: 7

case 2

in: [[],[[1,1]]]

expected: 0.5

case 3

in: [[1,1,1],[]]

expected: 3

case 4

in: [[1],[[2,2],[3,6]]]

expected: 4

Starter codePython

def resistance_series_parallel(series, parallel_groups):
    # Your code here
    pass

4 test cases · run your code against them in the editor