Resonance Condition
At resonance in series RLC circuit current is maximum because:
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About This Question
- Subject
- physics
- Chapter
- electromagnetic induction and ac
- Topic
- resonance condition
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Z minimal equals R
In a series RLC circuit, the current is I=V/Z.
- Resonance occurs when XL=XC, which means ωL−1/(ωC)=0.
- At this point, the impedance Z=R2+02=R.
- Since R is the absolute minimum possible value for Z, the current I=V/R reaches its maximum amplitude.
This medium difficulty physics question is from the chapter electromagnetic induction and ac, covering the topic of resonance condition. It appeared in the 2025 exam.
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