- Exam
- JEE Main
- Year
- 2023
- Date
- 13 April
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Alternating Current
JEE Main 2023 · 13 April · Evening Shift · Physics · Alternating Current
Given below are two statements: Statement I : An AC circuit...
Given below are two statements:
Statement I : An AC circuit undergoes electrical resonance if it contains either a capacitor or an inductor.
Statement II: An AC circuit containing a pure capacitor or a pure inductor consumes high power due to its non-zero power factor. In the light of above statements, choose the correct answer from the options given below:
Options
- AStatement I is false but statement II is true
- BStatement I is true but statement II is false
- CBoth Statement I and Statement II are false
- DBoth Statement I and Statement II are true
Correct answer
C. Both Statement I and Statement II are false
Step-by-step solution
For resonance to occur the condition is .
So, both inductor and capacitor is required.
The power factor is given by .
For an inductor the power factor is zero-lagging, . The angle between the voltage and current is .
For a capacitor the power factor is zero-leading.
Hence, both statements are false.