Three transformer rows show turn ratio setting voltage while inverse current keeps ideal power balanced.
Voltage ratio and inverse current ratio keep ideal transformer power balanced. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Two-to-four turns doubles voltage
Turns 2 to 4 carry voltage 4 V to 8 V while currents 4 A and 2 A both close power 16 W.
Pp=4×4=16,Ps=8×2=16
Three-to-six turns halves current
Turns 3 to 6 carry voltage 6 V to 12 V while currents 2 A and 1 A both close power 12 W.
Pp=6×2=12,Ps=12×1=12
Four-to-eight turns still conserves power
Turns 4 to 8 carry voltage 8 V to 16 V while currents 2 A and 1 A both close power 16 W.