JEE Main 202224 JuneEvening Shift
- Exam
- JEE Main
- Year
- 2022
- Date
- 24 June
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Alternating Current
JEE Main 2022 · 24 June · Evening Shift · Physics · Alternating Current
Given below are two statements : Statement-I: The reactance of an...
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
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
Options
- ABoth Statement I and Statement II are true.
- BBoth Statement I and Statement II are false.
- CStatement I is true but Statement II is false.
- DStatement I is false but Statement II is true.
Correct answer
C. Statement I is true but Statement II is false.
Step-by-step solution
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.