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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
- A radiation of energy ‘E’ falls normally on a perfectly reflecting surface
- In vacuum, to travel distance d, light takes time t and in medium to travel distance
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- A cricket ball of mass 250 g collides with a bat with velocity 10 m/s
- The ratio of longest wavelength corresponding to Lyman and Blamer series
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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