A 6.8 kΩ resistor, a 7 mH coil, and a 0.02 µF capacitor are in parallel across a 17 kHz ac source. The coil's internal resistance, RW, is 30 Ω. The equivalent parallel resistance, Rp(eq), is
A. 1,878 Ω
B. 18,780 Ω
C. 18,750 Ω
D. 626 Ω
Answer: Option B
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Related Questions on RLC Circuits and Resonance
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plz discuss formula .