Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 5)
5.
A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is
Discussion:
94 comments Page 3 of 10.
MUHAMMAD MUNEER said:
10 years ago
This answer is wrong because for step-up transformer turn ratio a<1, for step-down transformer turn ratio a>1. The turn ratio is N1/N2, answer is 0.2.
MANISH said:
1 decade ago
TURN RATIO FORMULA=SECONDARY TURNS(N2)/PRIMARY TURNS(N1).
SO, VALUE OF N2=2000 AND VALUE OF N1=400.
=>N2/N1
=>2000/400=5. THIS IS ANS.
SO, VALUE OF N2=2000 AND VALUE OF N1=400.
=>N2/N1
=>2000/400=5. THIS IS ANS.
Kirthi Arora said:
9 years ago
Turn ratio is define as ratio of turns of wire in the primary winding to its secondary winding. So Turn ratio = Np/Ns => 400/2000 = 0.2.
Mudasser Rahim said:
7 years ago
The answer is wrong there is a difference between the turn ratio and transformation ratio.
So, the Answer should be 400/2000= 0.2.
So, the Answer should be 400/2000= 0.2.
Akash.bhure said:
1 decade ago
Solution:
No.of turns in the primary (N1) = 400.
No.of turns in the secondary (N2) = 2000.
Turns ratio(K) = N2/N1 = 2000/400 = 5.
No.of turns in the primary (N1) = 400.
No.of turns in the secondary (N2) = 2000.
Turns ratio(K) = N2/N1 = 2000/400 = 5.
Janardan said:
8 years ago
This is wrong because turns ratio different from transformation ratio.
Transformation ratio = k = n2/n1.
Turns ratio =1/k=n1/n2.
Transformation ratio = k = n2/n1.
Turns ratio =1/k=n1/n2.
ANKIT said:
9 years ago
Turn ratio =N1/N2 and transformation ratio=N2/N1.
Turn ratio=400/2000 = 0.2.
Turn ratio=400/2000 = 0.2.
Naveen said:
1 decade ago
so much confusion in the formula
Turn ratio is N1/N2 or N2/N1.
you have tried both the formula in two questions given here.
Turn ratio is N1/N2 or N2/N1.
you have tried both the formula in two questions given here.
Atul kumar said:
1 decade ago
Wrong. Because turns ratio is opposite to transformation ratio. Turns ratio = N1/N2 whereas N2/N1 is transformation Ratio.
Shailesh said:
1 decade ago
Turns ratio = n1/n2 = 400/2000 = 0.2.
Transformation ratio = n2/n1.
Here turns ratio is asked not transformation ratio.
Transformation ratio = n2/n1.
Here turns ratio is asked not transformation ratio.
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