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A step down transformer is used on a 1000 V line to deliver 20 A at 120 V at the secondary coil. If the efficiency of the transformer is 80%, the current drawn from the line is
Options
(a) 3A
(b) 30 A
(c) 0.3 A
(d) 2.4 A
Correct Answer:
3A
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Which of the following, is a vector quantity?
- An object is placed at a distance of 10 cm from a co-axial combination of two lenses
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following, is a vector quantity?
- An object is placed at a distance of 10 cm from a co-axial combination of two lenses
- A body of mass 120 kg and density 600 kg/m³ floats in water.
- The sun light reaches us as white and not as its components because
- Two wires of equal length and equal diameter and having resistivities ρ₁ and ρ₂
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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