c program to calculate the equivalent resistance of n parallel resistors.
Program:
#include<stdio.h>
int main()
{
int n; /* number of resistors */
float er; /* equivalent resistance */
int r2;
int i; /* loop variable */
float temp;
printf("enter number of resistors\n");
scanf("%d",&n);
printf("enter all resistances\n ");
scanf("%f",&er);
for(i=1;i<n;i++)
{
scanf("%d",&r2);
temp=(1/er)+((1/(float)r2)); /* cast r2 to float */
er=(1/temp);
}
printf("\nequivalent resistance = %f",er);
return 0;
}
Sample input and output:
enter number of resistors
3
enter all resistances
100 100 50
equivalent resistance = 25.000000
