Copper loss

Iron loss

Mechanical loss

All of the above

Number of electrons is equal to number of holes

Number of electrons is more than number of holes

Number of electrons is less than number of holes

(a), (b) or ? depending on temperature

1

0.5

-1

None of the above

2

0.25

4

0.5

-1%

-2%

-3%

-4%