Question

How does a resistor affect an AC circuit?

Answer 1

Hint :A resistor may be a passive two-terminal electrical component that implements electric resistance as a circuit element. In electronic circuits, resistors are wont to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

Complete Step By Step Answer:
The current flowing through the resistor is directly proportional to the voltage across it with this linear relationship in an AC circuit being called Impedance. Unlike DC circuits, Ohm's law is often used when working with resistors in AC circuits to calculate the resistors voltages, currents and power.
The resistance value of the resistor in both AC and DC circuits is the same regardless of the frequency of the AC supply voltage. The change in direction of current in AC supply doesn't affect resistors behavior. Therefore the current within the resistor will rise and fall consistent with the voltage because it rises and falls.
A resistor has the power to scale back voltage and current when utilized in a circuit. The best function of a resistor is to limit current flow. Ohm's law tells us that a rise during a resistors value will see a decrease in current. To scale back voltage, resistors are found out during a configuration referred to as 'voltage divider'.

Note :
A.C. (Alternating Current) Circuits believe an A.C. power source. Now, do you have to wish to scale back the present flowing in such a circuit, use an inductor or a capacitor since these devices would scale back the present flowing through the circuit while dissipating no power within themselves, causing no power loss.