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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
- The radii of circular orbits of two satellites A and B of the earth, are 4R and R
- The dimensions of magnetic field intensity B are
- A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool
- The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
- A polished metal plate has a rough and black-spot. It is heated to 1400 K
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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