You want to help your friend who is taking Electric Circuit
     You want to help your friend who is taking Electric Circuit I by writing a computer program in C+ + language. Write a program to meet the following specifications:  Your program should compute sum of any number of resistor the user enters, for    example if the user enter number of resistors as 4 then the total resistance is Rt = R1 + R2 +R3 + R4   If the user enters the voltage applied to these resistors then your program should compute current 1= E/Rt  If the user enters I (current in amps only) then your program should compute voltage  Finally compute the power P using the formula P=E*I
 
  
  Solution
 #include <iostream>
using namespace std;
int main()
{
int t,Rt=0,r=0,I,E,P=0;
 char o;
cout << \"Enter the number of resistances present in the circuit\" << endl;
cin >> t;
 for (int i = 1; i <= t; ++i)
{
cout << \"Enter the Resistance value\" << endl;
cin >> r;
Rt += r;
}
cout << \"Total Resistance Rt = \" << Rt;
 switch(o)
{
case \'a\':
cout << \"Enter Current value in amperes: \";
cin >> I;
P=I*I*Rt;
cout << \"Power\" << P;
break;
case \'b\':
cout << \"Enter Voltage value in volts: \";
cin >> V;
P=(V*V)/Rt;
cout << \"Power\" << P;
break;
default:
/* If operator is other than a or b, error message is shown */
cout << \"Error! operator is not correct\";
break;
}
return 0;
}


