| ⇦ | 
| ⇨ |
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: - Two particles A and B having equal charges, after being accelerated
- The voltage gain of an amplifier with 9% negative feedback is 10.
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
- 64 drops of mercury, each charged to a potential of 10 V, are combined
- The sum of the magnitudes of two forces acting at a point is 16 N
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two particles A and B having equal charges, after being accelerated
- The voltage gain of an amplifier with 9% negative feedback is 10.
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
- 64 drops of mercury, each charged to a potential of 10 V, are combined
- The sum of the magnitudes of two forces acting at a point is 16 N
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply