Absolutely logical explanation. All the three components have been designed in such a way that if you think logically there is no possibility of erroneous connection.
Hlo sir, kindly answer my this query Jb humein machines di jaati hain toh uske covers pe address tag already lgge hote hain. Jb poll khtm hone ke baad humne new address tag machines ke covers pe lgane hain toh purane address tags ka kya krna hota hai?