When 100 volt d.c. is applied across a solenoid, a P current of \( 1.0 \mathrm{~A} \) flows in i...

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When 100 volt d.c. is applied across a solenoid, a
P current of \( 1.0 \mathrm{~A} \) flows in it. When 100 volt a.c. is

W applied across the same coil, the current drops to \( 0.5 \mathrm{~A} \). If the frequency of a.c. source is \( 50 \mathrm{~Hz} \) the impedance and inductance of the solenoid is
(1) \( 200 \mathrm{ohm} \) and 0.55 henry
(2) \( 100 \mathrm{ohm} \) and 0.86 henry
(3) \( 200 \mathrm{ohm} \) and 1.0 henry
(4) \( 100 \mathrm{ohm} \) and 0.93 henry
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