Timeline for $I²R$ loss in case of transformer
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 5, 2023 at 16:44 | comment | added | Puk | This is correct, assuming the line resistance is negligible. If you now assume that there is a small resistance $R$ connecting the transformers, there will be an $I^2R$ loss where $I \approx 1\text{ A}$. The point is the higher the step-up/down ratio, the lower this current, and hence the lower the transmission loss. | |
| Nov 5, 2023 at 16:36 | comment | added | Arbish Ali | So, suppose we have a 100 V A.C supply, and a 1000 W load. If connected without transformer, it draws 10 A current. Now we first connect a 1:10 step up transformer and then a 1:10 step down transformer. Now the current between these two will be 1 A, and current supplied to load is again 10 A. So here P=VI holds, as the load is not changing? | |
| Nov 5, 2023 at 16:30 | history | answered | Puk | CC BY-SA 4.0 |