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
0.2
0.4
5
25
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
94 comments Page 8 of 10.

Vaibhav sudhan said:   1 decade ago
Secondary turns divided by the primary turns gives turn ratio.

N2/N1 = turn ratio.

2000/400 = 5.

Avanish said:   1 decade ago
Difference between turn and voltage ratio.

Cks said:   1 decade ago
turns ratio =h.v(less current ,more turns)/l.v(more current, less turns)=2000/400=5

Venky said:   1 decade ago
Here [always] turns ratio is H.V/L.V side

A.veeravanchinathan said:   1 decade ago
Transformation ratio = Vs/Vp = Es/Ep = Ns/Np = Ip/Is.
= Ns/Np = 2000/400 = 5.

Gaurav garg said:   1 decade ago
We know turn ratio = (turn on h. V) / (turn on l. V).

So,

Turn ratio = 2000/400.

Turn ratio = 5.

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.

Krishna teja said:   1 decade ago
But actually the formula for turns ratio is N1/N2 so the answer will be 0.2.
Please reply why all taken it as N2/N1.

Rupesh Das said:   1 decade ago
Primary turns(N1)=400
Secondary turns(N2)=2000
Turn Ratio(K)=N2/N1
=>2000/400=5.
This Is Ans

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.


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