A)- Indicate whether the following statements are true or false and correct the false statements 1-The efficiency of a transformer at load 0.8 p.f. Lag is more than at load 0.8 p.f. Lead 2- No load current in a transformer lags behind the voltage by about 15° 3- There is no output from the transformer under short-circuit conditions 4-. The full-load copper loss and iron loss of transformer are 800w and 600w respectively, the copper loss and iron loss at half load will be 400w and 300w respectively 5- The imaginary component of no load current for transformer is responsible for the consumption of iron loss

A)- Indicate whether the following statements are true or false and correct the false statements 1-The efficiency of a transformer at load 0.8 p.f. Lag is more than at load 0.8 p.f. Lead 2- No load current in a transformer lags behind the voltage by about 15° 3- There is no output from the transformer under short-circuit conditions 4-. The full-load copper loss and iron loss of transformer are 800w and 600w respectively, the copper loss and iron loss at half load will be 400w and 300w respectively 5- The imaginary component of no load current for transformer is responsible for the consumption of iron loss