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A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an AC supply of 110 V and a current of 10 A flows in it. The voltage across the secondary and the current in it respectively are
  • a)
    55 V and 20 A
  • b)
    440 V and 5 A
  • c)
    220 V and 10 A
  • d)
    220 V and 5 A
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
A transformer has 200 windings in the primary and 400 windings in the ...
Given data:
Primary windings: 200
Secondary windings: 400
Primary voltage: 110 V
Primary current: 10 A

To find:
Secondary voltage and secondary current

Solution:
1. The transformer equation relates the primary and secondary voltages and currents:
Vp/Vs = Np/Ns = Ip/Is

where Vp and Vs are the primary and secondary voltages, Np and Ns are the number of primary and secondary windings, and Ip and Is are the primary and secondary currents.

2. Using the transformer equation, we can find the secondary voltage:
Vp/Vs = Np/Ns
110/Vs = 200/400
Vs = (110 * 400) / 200
Vs = 220 V

Therefore, the secondary voltage is 220 V.

3. Now, let's find the secondary current:
Ip/Is = Np/Ns
10/Is = 200/400
Is = (10 * 400) / 200
Is = 20 A

Therefore, the secondary current is 20 A.

So, the correct answer is option D: 220 V and 5 A.
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A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an AC supply of 110 V and a current of 10 A flows in it. The voltage across the secondary and the current in it respectively area)55 V and 20 Ab)440 V and 5 Ac)220 V and 10 Ad)220 V and 5 ACorrect answer is option 'D'. Can you explain this answer?
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A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an AC supply of 110 V and a current of 10 A flows in it. The voltage across the secondary and the current in it respectively area)55 V and 20 Ab)440 V and 5 Ac)220 V and 10 Ad)220 V and 5 ACorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an AC supply of 110 V and a current of 10 A flows in it. The voltage across the secondary and the current in it respectively area)55 V and 20 Ab)440 V and 5 Ac)220 V and 10 Ad)220 V and 5 ACorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an AC supply of 110 V and a current of 10 A flows in it. The voltage across the secondary and the current in it respectively area)55 V and 20 Ab)440 V and 5 Ac)220 V and 10 Ad)220 V and 5 ACorrect answer is option 'D'. Can you explain this answer?.
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