cant the inductors be used instead of resistances in our home electric supplies?
Inductors store energy in its magnetic field where as resistor does not store energy but rather dissipates energy as heat.
The effect of an inductor in a circuit is to oppose changes in current through it by developing a voltage across it proportional to the rate of change of the current. An ideal inductor would offer no resistance to a constant direct current.
Inductors are used extensively in analog circuits.