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				| 1. | If the pu impedance of a single phase transformer is 0.01+j0.05, then its regulation at p.f. of 0.8 leading will be | 
| A. | 3.8% | 
| B. | 2.2% | 
| C. | -3.8% | 
| D. | -2.2% | 
| Answer» E. | |