multichargest.c

/*
*  The program should be able to calculate the energy required to move two charges
*  near eachother with a starting distance.
*
*      Created by: Austin Walters
*/

# include <stdio.h>
# include <math.h>
# define ke 8.98755e9

int
main(void)
{

/* Charge of units being brought in going from top left clockwise*/
          double q_1;
          double q_2;
          double r;        /* Final distance */
          double R;        /* Original distance  */
          double x;        /* Value of origional configuration */
          double y;        /* Value of final configuration */
          double U;        /* Potential Energy     */

          printf("This program only works to calculate the energy required to group");
          printf("two charges in and calculate the energy required, from a set starting distance");
          printf("and end distance \n");

          printf("Enter the charge of q, please take only the single value of q.");
          printf("Here is an example: if there is something such as 2q and q being q =");
          printf("3.2e-5c, you only need to have 3.2e-5, adding in the C will cause a malfunction.\n");
          printf("\nIf the charge comes from a distance infinity enter 9999 for origional distance\n\n");

          printf("q1 (Charge One) > ");
          scanf("%lf", &q_1);

          printf("q2 (Charge Two) > ");
          scanf("%lf", &q_2);

          printf("Please enter the origional distance in meters. > ");
          scanf("%lf", &R);

          printf("Please enter the final distance in meters. > ");
          scanf("%lf", &r);

          if(R == 9999){
                U = ((ke*(q_1)*(q_2)) / (R));
          }else{
                 x = ((ke*((q_1)*(q_2))) / (R));
                 y = ((ke*((q_1)*(q_2))) / (r));

                 U = (y - x);
          }
          printf("The total energy required to bring the charges to the configuration is");
          printf("\n> %.9f Joules\n\n", U);

system("pause");
return(0);