SRUTIGUDURU

Create potential_energy_two_charges.py

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### Describe your change: * [x] Add an algorithm? * [ ] Fix a bug or typo in an existing algorithm? * [x] Add or change doctests? -- Note: Please...

Create electric-potential-point-charge.py for electronics branch

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### Describe your change: There is now a new function to calculate the value of electric potential of a charge from a distance. * [x] Add an algorithm? * [...