Physics Exam > Physics Questions > The secondary coil of an ideal step down tran...
Start Learning for Free
The secondary coil of an ideal step down transformer is delivering 500W power at 12.5A current. If the ratio of turns in the primary to the secondary is 5 : 1, then the current flowing in the primary coil will be :
- a)62.5A
- b)2.5A
- c)0.4A
- d)6A
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The secondary coil of an ideal step down transformer is delivering500W...
P = VI
For an ideal transformer (100% efficient)
The correct answer is: 2.5A
For an ideal transformer (100% efficient)
The correct answer is: 2.5A
Most Upvoted Answer
The secondary coil of an ideal step down transformer is delivering500W...
Given:
- Power delivered by the secondary coil, P = 500 W
- Current flowing through the secondary coil, I = 12.5 A
- Turns ratio, Np/Ns = 5:1
To find:
Current flowing through the primary coil
Solution:
Step 1: Calculate the voltage across the secondary coil using the power formula:
P = V * I
where P is the power, V is the voltage, and I is the current.
Given that P = 500 W and I = 12.5 A, we can rearrange the formula to find V:
V = P / I = 500 W / 12.5 A = 40 V
So, the voltage across the secondary coil is 40 V.
Step 2: Use the turns ratio to calculate the voltage across the primary coil.
The turns ratio is given as Np/Ns = 5:1.
Since the voltage is directly proportional to the number of turns, we can write the equation as:
Vp/Vs = Np/Ns
Substituting the known values, we have:
Vp/40 V = 5/1
Cross-multiplying, we get:
Vp = 40 V * (5/1) = 200 V
So, the voltage across the primary coil is 200 V.
Step 3: Calculate the current flowing through the primary coil using the power formula:
P = V * I
where P is the power, V is the voltage, and I is the current.
Given that P = 500 W and V = 200 V, we can rearrange the formula to find I:
I = P / V = 500 W / 200 V = 2.5 A
Therefore, the current flowing through the primary coil is 2.5 A.
Conclusion:
The current flowing in the primary coil of the transformer is 2.5 A. Hence, the correct answer is option B.
- Power delivered by the secondary coil, P = 500 W
- Current flowing through the secondary coil, I = 12.5 A
- Turns ratio, Np/Ns = 5:1
To find:
Current flowing through the primary coil
Solution:
Step 1: Calculate the voltage across the secondary coil using the power formula:
P = V * I
where P is the power, V is the voltage, and I is the current.
Given that P = 500 W and I = 12.5 A, we can rearrange the formula to find V:
V = P / I = 500 W / 12.5 A = 40 V
So, the voltage across the secondary coil is 40 V.
Step 2: Use the turns ratio to calculate the voltage across the primary coil.
The turns ratio is given as Np/Ns = 5:1.
Since the voltage is directly proportional to the number of turns, we can write the equation as:
Vp/Vs = Np/Ns
Substituting the known values, we have:
Vp/40 V = 5/1
Cross-multiplying, we get:
Vp = 40 V * (5/1) = 200 V
So, the voltage across the primary coil is 200 V.
Step 3: Calculate the current flowing through the primary coil using the power formula:
P = V * I
where P is the power, V is the voltage, and I is the current.
Given that P = 500 W and V = 200 V, we can rearrange the formula to find I:
I = P / V = 500 W / 200 V = 2.5 A
Therefore, the current flowing through the primary coil is 2.5 A.
Conclusion:
The current flowing in the primary coil of the transformer is 2.5 A. Hence, the correct answer is option B.
Free Test
FREE
| Start Free Test |
Community Answer
The secondary coil of an ideal step down transformer is delivering500W...
P = VI
For an ideal transformer (100% efficient)
The correct answer is: 2.5A
For an ideal transformer (100% efficient)
The correct answer is: 2.5A
|
Explore Courses for Physics exam
|
|
Similar Physics Doubts
The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer?
Question Description
The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer?.
The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer?.
Solutions for The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Physics.
Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free.
Here you can find the meaning of The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The secondary coil of an ideal step down transformer is delivering500Wpower at12.5Acurrent. If the ratio of turns in the primary to the secondary is5 :1, then the current flowing in the primary coil will be :a)62.5Ab)2.5Ac)0.4Ad)6ACorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Physics tests.
|
|
Explore Courses for Physics exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup