Answer to Question #165721 in C++ for Kefilwe Mamabolo

Question

Students in Programming 1 would like to understand the concept of Ohm’s law. You are 

required to write an application that will help students to calculate the voltage in an electric 

circuit using the formula below.

V = IR 

Where V= volatge

I = Current

R- Resistance

Resistance Voltage

4.0 0

8.5 0

6.0 0

7.35 0

9.0 0

15.3 0

3.0 0

5.4 0

2.9 0

4.8 0

Write a C++ application that will help the students to understand the concepts:

4.1 Create a C++ called Circuit and save it in a file called Circuit.cpp. 

4.2 Declare all necessary variables and constants.

4.3 Declare two parallel arrays named current, resistance and initialise them using the 

information given above.

4.4 Declare another parallel array called voltage populate by calling using default values.

4.5 Create a menu that will iterate until the user enters an invalid number. Create this menu 

by calling the function menus. There are five possible menu selections numbered from 

1 to 7, if the user enters 8 or any other number the program must terminate. 

NB: Make use of the switch statement for the menu selection.

Menu 

Option

Description

1 Display all 

 Display all circuit details as shown in Figure 4.1.

2 Search volts: (See Figure 4.2)

 The user must be prompted to enter the volts that he or she would like to 

search for.

 The volts must then be searched in the corresponding array.

o If the value is found or not an appropriate message must be 

display as shown in Figure 4.2.

3 Search volts and indicate where it was found : (See Figure 4.2)

 The user must be prompted to enter the volts that he or she would like 

to search for. 

 The volts must then be searched in the corresponding array.

o If the value is found it must display the value, the index at which 

it was found as well as the number of eminent for that particular 

volatge or an appropriate message must be display as shown in 

Figure 4.2.

4 Find the highest voltage (See Figure 4.3)

 Display the highest voltage.

5 Find highest volatge with corresponding details: (See Figure 4.3)

 Display the highest volts with their corresponding details 

6 Display average volatge (See Figure 4.4).

 Calculate and display average voltage.

7 Display number of measurements that are above the average volatge (See 

Figure 4.4).

8 or any 

other key

Answer 1

#include<iostream>
using namespace std;
int main(){

int  V,I,R;
V = I*R;
cout<<"Enter current"<<endl;
cin>>I;
cout<<"Enter resistance in ohms"<<endl;
cin>>R;
cout<<"voltage="<<I*R<<endl;
return 0;}