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Alternating Current — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsAlternating Current1 Mark
MCQ
When $100$ volt $dc$ is applied across a coil, a current of $1$ amp flows through it. When $100$ volt $ac$ at $50$ cycle $S^{-1}$ is applied to the same coil, only $0.5$ ampere current flows. The impedance of the coil is
  • A
    $100 \Omega$
  • ✓
    $200 \Omega$
  • C
    $300 \Omega$
  • D
    $400 \Omega$
✓

Answer

Correct option: B.
$200 \Omega$
$200 \Omega$

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