Can an LCR AC circuit be made purely resistance How?

An LCR circuit appears purely resistive when at resonance. At resonance, the reactance of the inductor and the capacitor are equal and opposite, leaving only the resistive element.

When AC current is flowing through pure resistance the current voltage?

For resistors in AC circuits the direction of the current flowing through them has no effect on the behaviour of the resistor so will rise and fall as the voltage rises and falls. The current and voltage reach maximum, fall through zero and reach minimum at exactly the same time.

What is purely reactive circuit?

In a purely reactive circuit, no circuit power is dissipated by the load(s). Rather, power is alternately absorbed from and returned to the AC source. Voltage and current are 90° out of phase with each other.

How the LCR series circuit behaves for the frequencies above and the resonant frequencies?

How the RLC series circuit behaves for the frequencies above and below the resonant frequencies. For frequencies below resonant frequency, the capacitive reactance is more than the inductive reactance. For frequencies above resonant frequency, the inductive reactance is more than the capacitive reactance.

How does a resistor behave in an AC circuit compared to a DC circuit?

The resistance value of the resistor in both AC and DC circuits is same irrespective of the frequency of the AC supply voltage. The change in direction of current in AC supply does not affect resistors behavior. So the current in the resistor will rise and fall according to the voltage as it rises and falls.

What is phase difference between voltage and current in AC circuit with pure resistor?

Explanation: In a pure ohmic AC Resistance, the current and voltage are both “in-phase” as there is no phase difference between them. The current flowing through the resistance is directly proportional to the voltage across it with this linear relationship in an AC circuit being called Impedance.