why slip ring motor used in cranes/resistance box uses 

hello friends
aj ke video me hm dekhnge ki cranes me slip ring motor used yu hoti h iska reason kya h
induction motor k use kha hota h aur dono motor me difference kya sb electrical ki jankari apko milega ummed h apko video pasnd ayegi
1. why slip ring motor used in cranes
2. difference in slip ring and squirrel cage motor
3. crane me resistance box kyu
4. load kis motor se uthate h
5. slip ring motor in Hindi
6. why high starting torque in slip ring motor