Question

What are the advantage and disadvantage of resistance

Answer 1

Whether a resistance is in series or parallel, in a properly designed circuit the resistor is there for a very good reason. It makes the circuit work as intended.

The only time it is a disadvantage is if this is an unintended resistance - as of a wire. It will cause a voltage drop and loss of power. But if the wire is properly specified, this will not cause a problem.