Question

state one advantage of AC over DC

Answer 1

The major advantage that AC electricity has over DC electricity is that AC voltages can be readily transformed to higher or lower voltage levels, while it is difficult to do that with DC voltages. Since high voltages are more efficient for sending electricity great distances, AC electricity has an advantage over DC

Answer 2

The major advantage that AC electricity has over DC electricity is that AC voltages can be readily transformed to higher or lower voltage levels while it is not possible with DC. Also cost of generation of AC is much lesser thhan that of DC. Loss of power will be less in AC.