What stdio. h input function would be used to get input from the user by the keyboard? Write the code to obtain the voltage drop across a resister from the user. Assume the input variable is called vr1. What stdio. h output function would be used to provide output to the monitor?

scanf () function is used to get a input from keyboard. This function is in the stdio. h library. To use this function we must include the stdio. h library first in the code. Then only we can use the scanf () function in any code. printf () function is used to print anything. this function is from stdio. h library.

Code to read voltage drop across the register.

#include

/ / main function

int main (void) {

/ / variable

double vr1;

printf ("Enter voltage drop:");

/ / read voltage drop from user

scanf ("%lf",&vr1);

/ / print voltage drop

printf ("voltage drop is:%0.2lf", vr1);

return 0;

}

Output:

Enter voltage drop:200.4

voltage drop is:200.40