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A rejector circuit is a resonant circuit in which:

(A) L, C, R are connected in parallel
(B) L, C, R are connected in series
(C) C, R are connected in series
(D) L, R are connected in series

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🚀 Step-by-Step Solution to Solve This Question 🚀
📌 Chapter: Alternating Current Circuits
📌 Topic: Rejector Circuits

🔹 Step 1: Introduce the core concept
A rejector circuit (also called a band-stop or notch filter) is designed to block a specific frequency while allowing others to pass. Its configuration determines its behavior.

🔹 Step 2: Explain how it applies here
We need to identify which component arrangement creates a rejector circuit. The key is recognizing how inductors (L), capacitors (C), and resistors (R) interact in different configurations.

🔹 Step 3: Break down the reasoning step-by-step

Parallel LCR Circuit (Option A):

At resonance, parallel LCR acts as a rejector

High impedance at resonant frequency blocks that specific frequency

Allows other frequencies to pass

Why Other Options Don't Fit:

Series LCR (Option B): Passes resonant frequency (acceptor circuit)

C-R (Option C) or L-R (Option D): Simple filters, not rejector circuits

🔹 Step 4: Explain the final conceptual conclusion
Only the parallel LCR configuration creates the frequency-rejecting behavior that defines a true rejector circuit.

✅ Final Answer: (A) L, C, R are connected in parallel 🚀

🔥 Pro Tip:
Remember: "Parallel blocks, series passes" - parallel LCR rejects its resonant frequency, while series LCR accepts it!
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