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PhysicsNEET 2021AC through R, L, C and LCR circuits

Alternating Current

An inductor of inductance LL, a capacitor of capacitance CC and a resistor of resistance RR are connected in series to an ac source of potential difference VV volts as shown in the figure. The potential differences across L, C and R are 40 V, 10 V and 40 V, respectively. The amplitude of the current flowing through the LCR series circuit is 10210\sqrt2 A. The impedance of the circuit is:

Question 31 as printed in the NEET 2021 booklet

  1. A.424\sqrt2 Ω\Omega
  2. B.52\dfrac{5}{\sqrt2} Ω\Omega
  3. C.4Ω4 \Omega
  4. D.5Ω5 \Omega✓

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

From Physics › Alternating Current › AC through R, L, C and LCR circuits — lectures, notes and every past question on it.

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