Ap ne aksar dekha hoga keh bijli ke switch mein 2 tangen hoti hain aur iski waja intehai sada hai yani garam current tar aur thandi tar jab switch..
The post Kia Apko Maloom Hai keh Kuch Switchs Mein 3 Tangen Kyun Hoti Hain appeared first on Blogger4Zero.com.