Question

How does a resistor affect an AC circuit?

Answer 1

Resistor imposes a restriction on the movement of alternating current the same way it does to a direct current..

Explanation:

Value of opposition is the same for a resistor in case of both AC and DC.
It, similar to a circuit carrying direct current opposes an alternating current.
It dissipates power as well.
Ohm's law `V = iR` is followed as well where the value of the current `i = i""_(rms)`.

Where `i""_(rms)` is the root mean squared current.