An inductive coil has a resistance of \( 100 \Omega \). When an a.c…

An inductive coil has a resistance of \( 100 \Omega \). When an a.c...
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An inductive coil has a resistance of \( 100 \Omega \). When an a.c. signal of frequency \( 1000 \mathrm{~Hz} \) is fed to the coil, the applied voltage leads the current by \( 45^{\circ} \). What is the inductance of the coil?
(1) \( 10 \mathrm{mH} \)
(2) \( 12 \mathrm{mH} \)
(3) \( 16 \mathrm{mH} \)
(4) \( 20 \mathrm{mH} \).
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