General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 5)
5.
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to
Discussion:
29 comments Page 2 of 3.
Vrishal said:
1 decade ago
There is no machine in world that can be 100%used it energy to do work. So every machine losses the energy during working. How is expansion of transforming machine ti it?
Emmanuel said:
1 decade ago
A transformer is an electrical device for changing the size of an AC voltage. They are used to increase or decrease the emf of an alternating current.
Manish said:
1 decade ago
Copper windings has some resistance, current goes through the copper winding, resistance oppose the alternating current, so some heat are produce.
Swathi said:
1 decade ago
Hysteresis loss is a heat loss caused by the magnetic properties of the armature.
Keerthana said:
1 decade ago
Large transformer become hot due to the high current and loss of the current.
Vivetha.h said:
1 decade ago
Large transformer becomes hot due to the high current and loss of the current
Jerome said:
8 years ago
I think it is as a result demagnetization and the magnetization processes.
(1)
Faruq Lawal said:
9 years ago
Too much of heat reduce the current generation H = I^2RT.
Izengo said:
8 years ago
Tell me the meaning of magnetisation and demagnetization.
Harish Reddy said:
1 decade ago
Both the heating effect of current and hysteresis loss.
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