Question 27 of 190
Given below are two statements :
Statement-I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II: In ac circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the options given below
Show answer and solution
Answer: (C) Statement I is true but Statement II is false.
The reactance of a circuit containing a capacitor and an inductor is given by . An AC circuit has zero reactance at resonance, i.e., when, . So, first statement is true.
The power consumption in an AC circuit is zero when circuit contains only inductance or capacitance since average power consumed in a cycle is zero for inductance or capacitance. So, second statement is false.
The power consumption in an AC circuit is zero when circuit contains only inductance or capacitance since average power consumed in a cycle is zero for inductance or capacitance. So, second statement is false.