Just work it out. If the load resistance is 0.5 ohms, the load draws more current (3.33 amps vs 2.5 amps before), but it’s less power, because the voltage has dropped: it’s now only burning 5.55W.

Looking into the primary of this transformer, you should see a load equivalent to 1/100th of the secondary’s load. In other words, the current out of V1 should be the same as a 1 ohm resistor.