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A transformer rated at 10 kW is used to connect a 5 kV transmission line to a 240 V circuit. The ratio of turns in the windings of a transformer
Options
(a) 5
(b) 20.8
(c) 104
(d) 40
Correct Answer:
20.8
Explanation:
A 5 kV has to be connected to a 240 V circuit. This is a step down transformer. The ratio of primary [5000 V / 240 V] = n(ᴘ) / n(ѕ). Primary has 20.8 times the turns in the secondary.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
- A particle is executing the motion x=Acos (ωt-θ). The maximum velocity of the particle is
- If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is
- The intensity at the maximum in a Young’s double slit experiment is I₀.
- When a mass M is attached to a spring of force constant K,
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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