A "big load" is one which draws, and therefore dissipates, a lot of power.
On any given AC circuit, more load = more current = lower resistance/impedance.
Think of a hair dryer. 1500 Watts is a big load, and caused by a low resistance
On any given AC circuit, more load = more current = lower resistance/impedance.
Think of a hair dryer. 1500 Watts is a big load, and caused by a low resistance