This problem is to do with an electrical resistors program

Question

We can imagine connecting 2 resistors in series , resulting in a higher resistance, or in parallel , reducing the resistance.

Starting with:

 

double r1 = 4.7;

double r2;

 

Calculate and display the series resistance given by:

 

series = r1 + r2

 

and the parallel resistance , given by :

 

Parallel = (r1 * r2) / (r1 + r2)