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A transformer having efficiency of 90% is working on 200 V and 3kW power supply. If the current in the secondary coil is 6 A, then the voltage across the secondary coil and the current in the primary coil respectively are
Options
(a) 300 V, 15 A
(b) 450 V, 15 A
(c) 450 V, 13.5 A
(d) 600 V, 15 A
Correct Answer:
450 V, 15 A
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
- A current is flowing through resistance. A potential difference of 120 V
- A block of mass 4 kg is kept on a rough horizontal surface.The coefficient of static
- In a circuit, L,C and R are connected in series with an alternating voltage source
- At what temperature will the rms speed of air molecules be double that of NTP?
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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