MP Board · Class 12 · Physics · Alternating CurrentAt electrical resonance in a series LCR circuit, the impedance of the circuit is:
Step-by-Step Solution
At resonance, $X_L = X_C$, so impedance $Z = \sqrt{R^2 + (X_L - X_C)^2} = R$. This is the minimum possible value of impedance.
Detailed Options Breakdown
Option : Maximum and equal to $R$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Alternating Current.
Option 1: Minimum and equal to $R$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Zero
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Alternating Current.
Option 3: Infinite
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Alternating Current.
💡 Study Guide: This question tests core syllabus concepts from Alternating Current. For formulas, key summaries, and mock exam reference guides, read the full Alternating Current Revision Notes.