At very high frequencies, the effective impedance of the given circuit will be ________________ Ω. Numerical answer type. Work it out, then open the answer.

Answer: 2. At very high frequency capacitors act as shorts and the 20 H inductor is open. Lower-left branch (1 Ω + 20 H) carries no current; the vertical 0.5 F joins the two middle nodes. Path: 1 Ω, then 2 Ω ∥ 2 Ω = 1 Ω Z = 1 + 1 = 2 Ω

At very high frequencies, the effective impedance of the given… | JEE Main 2021 (31 Aug, Shift 2)

Q10JEE Main 2021 · 31 AUG · SHIFT 2Medium

Parallel AC Circuits

At very high frequencies, the effective impedance of the given circuit will be ________________ $\Omega$ .

Numerical answer type. Work it out, then open the answer.

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Answer: 2

At very high frequency capacitors act as shorts and the 20 H inductor is open.
Lower-left branch (1 $\Omega$ + 20 H) carries no current; the vertical 0.5 F joins the two middle nodes.
Path: $1\ \Omega$ , then $2\ \Omega \parallel 2\ \Omega = 1\ \Omega$
$Z = 1 + 1 = 2\ \Omega$

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