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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
- Equal charge q each are placed at the vertices AQ and B of an equilateral triangle
- If a carnot engine is working with source temperature at 227⁰C and sink
- A charge Q is uniformly distributed over a large plastic plate. The electric field
- The position x of a particle with respect to time t along x-axis is given
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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