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| Q.40 | The all-day efficiency of a transformer is defined as the ratio of ______________. | |
| Ans | 1. kVA output to the kVA input | |
| 2. output to the input | ||
| 3. kWh output in 24 hours to the kWh input in 24 hours | ||
| 4. kW output in 24 hours to the kW input in 12 hours |
Correct Ans: 3
