Advertisements
Advertisements
प्रश्न
In an oil-cooled transformer, why is cooling oil introduced at the bottom and allowed to rise?
विकल्प
Heated oil becomes lighter and rises carrying heat upward
Cold oil is lighter than hot oil
To prevent convection currents
Oil cannot move downward when heated
MCQ
Advertisements
उत्तर
Heated oil becomes lighter and rises carrying heat upward
Explanation:
When oil absorbs heat its density decreases, so it rises and carries heat to the tank walls for cooling.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
