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.

Sachin chaudhary said:   8 years ago
I agree @Rajkumar.

Second thing is that they can never be fractional it is always integral.

Stoyan said:   8 years ago
The answer is wrong. "Transformation ratio" and "turns ratio" are one and the same thing, the formula is N1/N2 = V1/V2 = I2/I1.

The answer is k = 400/2000 = 0.2.

Ramu said:   8 years ago
Actually, the turns ratio means n1/n2 so 400/2000=0.2.

The ans 5 i.e 2000/400 for transformation ratio=n2/n1.

Himanshu said:   8 years ago
The answer is n1/n2 i.e 0.2.

Ashok reddy said:   8 years ago
The turns ratio=n1/n2.
400/2000=0.2.

Sai said:   8 years ago
The Answer is 0.2.

Sunayana said:   8 years ago
Answer is 0.2.
Turns ratio is n1/n2.
Transformation ratio is n2/n1.

Balu said:   8 years ago
Turns ratio N1/N2 & transformation ratio N2/N1.

S P said:   7 years ago
Turn Ratio:

It is defined as the ratio of primary to secondary turns.
TR= N1/N2.
and

Transformation Ratio
The transformation ratio is defined as the ratio of the secondary voltage(or turns) to the primary voltage(or turns). It is denoted by K.
K= (E2/E1) or (N2/N1) or (I1/I2).

Prabha said:   7 years ago
Turns ratio.

I think n1/n2 because transformation ratio is n2/n1 once you cross I agree @Jyothi.


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