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The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source, then the loss of power is 20 W. When its is connected with 10 V AC source loss of power is 10 W. The frequency of AC source will be
Options
(a) 80 Hz
(b) 100 Hz
(c) 120 Hz
(d) 220 Hz
Correct Answer:
80 Hz
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Height of geostationary satellite is
- The magnetic field at the centre of a circular coil carrying current I ampere is B.
- Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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