JEE Mains · Physics · STD 12 -7. Alternating current
For the given figures, choose the correct options:
- A The rms current in circuit \((b)\) can never be larger than that in \((a)\)
- B The rms current in figure \((a)\) is always equal to that in figure \((b)\)
- C The rms current in circuit \((b)\) can be larger than that in \((a)\)
- D At resonance, current in \((b)\) is less than that in \((a)\)
Answer & Solution
Correct Answer
(A) The rms current in circuit \((b)\) can never be larger than that in \((a)\)
Step-by-step Solution
Detailed explanation
\(I _{ rms }=\frac{220}{40}=5.5\,A\) \(X _{ L }\) is not equal to \(X _{ C }\). So rms current in \((b)\) can never be larger than \((a)\).
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