7. Write a C++ program to read four resistors' values which are connected in parallel. Compute total resistor, and display it. (1/ RTotal) (1 R1 1/R2 1/ R3+ 1/R4) OR RTotal ( (R2* R3 R4)(R1* R3 R4) +(R1* R2 R3)) /R1*R2*R3*R4 9. Write a C++ program to read any letter as a character. Find its ASCII code as integer and display it. ASCIl stands for American Standard Code for International Interchange. ASCII code for upper case characters: A 64, B 65,...Z- 90 ASCll code for lower case characters: a 97, b 98,...z 122 ASCIl code for numbers: 0 48, 1 49, 9-57 11. Referring to the truth table of logical operators, for the following segment of code: If (input1 1 && Input 2) Cout