How is the all day efficiency of a single phase transformer calculated?
1
output in kWh/input in kWh (for 24 hours)
2
input in kWh/output in kWh (for 12 hours)
3
output in kWh/input in kWh (for 12 hours)
4
input in kWh/output in kWh (for 24 hours)
5
Question Not Attempted