A coil has an inductance of \( 0.7 \mathrm{H} \) and is joined in \( \mathrm{P} \) series with a...
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A coil has an inductance of \( 0.7 \mathrm{H} \) and is joined in
\( \mathrm{P} \) series with a resistance of \( 220 \Omega \). When the
W alternating emf of \( 220 \mathrm{~V} \) at \( 50 \mathrm{~Hz} \) is applied to it then the phase through which current lags behind the applied emf and the wattless component of current in the circuit will be respectively
(1) \( 30^{\circ}, 1 \mathrm{~A} \)
(2) \( 45^{\circ}, 0.5 \mathrm{~A} \)
(3) \( 60^{\circ}, 1.5 \mathrm{~A} \)
(4) None of these
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