(TCO 3) Write a complete C++ console mode program (#includes, etc., but no prolo

Question

(TCO 3) Write a complete C++ console mode program (#includes, etc., but no prologue) that solves a simple DC circuit problem. Given a DC voltage source of some magnitude, find the voltage drops across the 2 resistors. The user will provide the values for the voltage source and the 2 resistor values. The formula that you will need is:

VRx = Vsupply * Rx / (Rx + Ry) // Voltage Divider rule

· Use appropriate data types.
· Valid input is any positive real number. If the user input is zero or negative, your program should print an error message and not try to compute any results.
· Be sure to display explanatory text to make the input and output clear to the user. Results should be output with 3 digits following the decimal point.

(Points : 15)



5. (TCO 4) Create a C++ program that uses a while-loop to display the odd numbers between 15 and 30 including 15. The numbers should be displayed one per line. (Points : 15)

Explanation / Answer

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#include <iostream>
#include <iomanip>
using namespace std;
int main()
{double VRx,Vsupply,Rx,Ry;
cout<<"Enter DC magnitude: ";
cin>>Vsupply;
if(Vsupply<=0)
     cout<<"must be >0 program aborting ";
else
    {cout<<"Enter value for resistor 1: ";
     cin>>Rx;
     cout<<"Enter value for resistor 2: ";
     cin>>Ry;
     VRx=Vsupply*Rx/(Rx+Ry);
     cout<<"The voltage drops = "<<setprecision(3)<<fixed<<VRx<<endl;
     }

system("pause");
return 0;
}

------------------------

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{int n=15;
cout<<"Odd numbers betwee, 15 and 30 ";
while(n<=30)
    {cout<<n<<endl;
    n+=2;
    }

system("pause");
return 0;
}

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