According to the stem of the previous question (200 V primary, 800 V secondary) —

1. The current in the primary coil is less than the current in the secondary coil.
2. The voltage of the secondary coil is 4 times greater than that of the primary coil.
3. The difference in electric power between the primary and secondary coils is zero.

• ai
• bii
• cii and iii
• di, ii and iii