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Add a menu to the existing code already written to contain the following options Change Input...

Add a menu to the existing code already written to contain the following options

Change Input voltage

Add a single resistor

Delete resistor

Edit resistor

Group add a series of resistors

Display network

Quit program

Each item in the menu will probably end up being a function. A do-while loop and switch/case statement is probably best way to implement a menu.

You need to create at least 4 functions.

Existing code

#include <iostream>
#include <string>
#include <vector>

using namespace std;

// You must use this structure
struct node {

string name;
double resistance;
double voltage_across;
double power_across;

};

// An Example of the type of function you may want to create. It take node name
string nodeName() {
string node_name;
cout << "Enter Node Name: ";
cin >> node_name;

return node_name;
}

// This function takes voltage from user
double getVolt()
{
double source_voltage;
cout << "Enter Voltage: ";
cin >> source_voltage;
return source_voltage;
}

void calcVolt(vector<node>& N, double curr)
{
unsigned int i;
for (i = 0; i < N.size() ; ++i)
{
N[i].voltage_across = curr * N[i].resistance ;
}
}

// This function takes resistance from user
double getResistance(vector<node>& N)
{
double resistance , i = 0, sum = 0;
while (1)
{
cout << "Enter Resistance (0 to exit): ";
cin >> resistance;
if (resistance != 0)
{
N.push_back(node());
N[i].name = "Node ";
N[i].resistance = resistance;
sum += resistance;
}
else
return sum;

i++;
}
}

// This function calculates power
void calcPower(vector<node>& N, double curr)
{
unsigned int i;
for (i = 0; i < N.size() ; ++i)
{
N[i].power_across = curr * curr * N[i].resistance ;
}
}

// This function calculates current
double calcCurrent(double resistance, double voltage)
{
double current;
current = voltage / resistance ;
return current;
}

// This function displays network
void dispNetwork(vector<node>& N)
{
unsigned int i;
for (i = 0; i < N.size() ; ++i)
{
cout << "\n\nParameters: " <<N[i].name<< endl;
cout << "Resistance: " << N[i].resistance << " Ohms" << endl;
cout << "Voltage: " << N[i].voltage_across << " volts" << endl;
cout << "Power: " << N[i].power_across << " Watts" << endl;
}
}

//
int main()
{

double user_volt, total_res , total_curr;
vector<node> N;

// get voltage across the resistor from user
user_volt = getVolt();

// get resistor value from user
total_res = getResistance(N);

// Calculate series current for the one-node network
total_curr = calcCurrent(total_res, user_volt);

// Calculate the Volt across the resistor
calcVolt(N, total_curr);

// Calculate the power across the resistor
calcPower(N, total_curr);

// Display Node information
cout << "\n\nCircuit Parameters:: \n";
cout << "\tTotal Resistance: " << total_res <<" Ohms" << endl;
cout << "\tInput Voltage: " << user_volt <<" Volts" << endl;
cout << "\tSeries Current: " << total_curr << " Amp\n";
cout << "\tTotal Power: "<< total_curr * total_curr * total_res <<" Watts\n" << endl;

dispNetwork(N);

return 0;
}

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Homework Answers

Answer #1

Please find the answer

if any query first let me know please,

================================================================

#include <iostream>

#include <string>

#include <vector>

using namespace std;

// You must use this structure

struct node {

string name;

double resistance;

double voltage_across;

double power_across;

};

// An Example of the type of function you may want to create. It take node name

string nodeName() {

string node_name;

cout << "Enter Node Name: ";

cin >> node_name;

return node_name;

}

// This function takes voltage from user

double getVolt()

{

double source_voltage;

cout << "Enter Voltage: ";

cin >> source_voltage;

return source_voltage;

}

void calcVolt(vector<node>& N, double curr)

{

unsigned int i;

for (i = 0; i < N.size() ; ++i)

{

N[i].voltage_across = curr * N[i].resistance ;

}

}

// This function takes resistance from user

double getResistance(vector<node>& N)

{

double resistance , i = 0, sum = 0;

while (1)

{

cout << "Enter Resistance (0 to exit): ";

cin >> resistance;

if (resistance != 0)

{

N.push_back(node());

N[i].name = "Node ";

N[i].resistance = resistance;

sum += resistance;

}

else

return sum;

i++;

}

}

// This function calculates power

void calcPower(vector<node>& N, double curr)

{

unsigned int i;

for (i = 0; i < N.size() ; ++i)

{

N[i].power_across = curr * curr * N[i].resistance ;

}

}

// This function calculates current

double calcCurrent(double resistance, double voltage)

{

double current;

current = voltage / resistance ;

return current;

}

// This function displays network

void dispNetwork(vector<node>& N)

{

unsigned int i;

for (i = 0; i < N.size() ; ++i)

{

cout << "\n\nParameters: " <<N[i].name<< endl;

cout << "Resistance: " << N[i].resistance << " Ohms" << endl;

cout << "Voltage: " << N[i].voltage_across << " volts" << endl;

cout << "Power: " << N[i].power_across << " Watts" << endl;

}

}

//

int main()

{

double user_volt, total_res , total_curr;

vector<node> N;

// get voltage across the resistor from user

user_volt = getVolt();

// get resistor value from user

total_res = getResistance(N);

// Calculate series current for the one-node network

total_curr = calcCurrent(total_res, user_volt);

// Calculate the Volt across the resistor

calcVolt(N, total_curr);

// Calculate the power across the resistor

calcPower(N, total_curr);

// Display Node information

cout << "\n\nCircuit Parameters:: \n";

cout << "\tTotal Resistance: " << total_res <<" Ohms" << endl;

cout << "\tInput Voltage: " << user_volt <<" Volts" << endl;

cout << "\tSeries Current: " << total_curr << " Amp\n";

cout << "\tTotal Power: "<< total_curr * total_curr * total_res <<" Watts\n" << endl;

dispNetwork(N);

// Switch case are use to draw menu

int choice;

bool chooseMenu = true;

while (chooseMenu != false){

cout << "*******************************\n";

cout << " 1 - Change input voltage.\n";

cout << " 2 - Add a single resistor.\n";

cout << " 3 - Edit Resistor.\n";

cout << " 4 - Quit Program.\n";

cout << "*******************************\n";

cout << " Enter your choice : ";

cin >> choice;

switch (choice)

{

// case 1 for change the input voltage

case 1:

cout<<endl;

cout << "You choose change input voltage\n";

// get voltage across the resistor from user

user_volt = getVolt();

// Calculate series current for the one-node network

total_curr = calcCurrent(total_res, user_volt);

// Calculate the Volt across the resistor

calcVolt(N, total_curr);

// Calculate the power across the resistor

calcPower(N, total_curr);

cout << "\n\nCircuit Parameters:: \n";

cout << "\tTotal Resistance: " << total_res <<" Ohms" << endl;

cout << "\tInput Voltage: " << user_volt <<" Volts" << endl;

cout << "\tSeries Current: " << total_curr << " Amp\n";

cout << "\tTotal Power: "<< total_curr * total_curr * total_res <<" Watts\n" << endl;

break;

// case 2 to add single resistor

case 2:

cout<<endl;

cout << "You choose add single register \n";

// get voltage across the resistor from user

cout << "Enter Single Resistor : ";

double single_res;

cin>>single_res;

cout<<endl;

// Calculate series current for the one-node network

total_curr = calcCurrent(single_res, user_volt);

// Calculate the Volt across the resistor

calcVolt(N, total_curr);

// Calculate the power across the resistor

calcPower(N, total_curr);

cout << "\n\nCircuit Parameters:: \n";

cout << "\tTotal Resistance: " << single_res <<" Ohms" << endl;

cout << "\tInput Voltage: " << user_volt <<" Volts" << endl;

cout << "\tSeries Current: " << total_curr << " Amp\n";

cout << "\tTotal Power: "<< total_curr * total_curr * total_res <<" Watts\n" << endl;

break;

// case 3 for edit resistance value

case 3:

cout<<endl;  

cout << "You choose edit resistor \n "<<endl;

// get resistor value from user

total_res = getResistance(N);

// Calculate series current for the one-node network

total_curr = calcCurrent(total_res, user_volt);

// Calculate the Volt across the resistor

calcVolt(N, total_curr);

// Calculate the power across the resistor

calcPower(N, total_curr);

cout << "\n\nCircuit Parameters:: \n";

cout << "\tTotal Resistance: " << total_res <<" Ohms" << endl;

cout << "\tInput Voltage: " << user_volt <<" Volts" << endl;

cout << "\tSeries Current: " << total_curr << " Amp\n";

cout << "\tTotal Power: "<< total_curr * total_curr * total_res <<" Watts\n" << endl;

break;

// case 4 Quit the program

case 4:

cout << "Quit of Program.\n";

chooseMenu = false;

break;

default:

cout << "Not a Valid Choice. \n";

cout << "Choose again.\n";

cin >> choice;

break;

}

}

return 0;

}

==============================================================

Output

E\c++ Examplel testing VoltageTest2.exe nter Uoltage: 230 nter Resistance to exit 1 nter Resistance to exit): 4 nter Resistan

Ectt Example testing voltage lest2.exe 1Change input voltage 2 Hdd a single res istoF 3 Edit Resistor 4 -Quit Progran Enter y

===================================================================================

Please let me know if you have any query

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