Electrical Engineering - Transformers - Discussion

Discussion Forum : Transformers - General Questions (Q.No. 4)
4.
If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ?
250
25
6,250
62,500
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
46 comments Page 5 of 5.

Arun Kumar Raju C said:   1 decade ago
Ns/Np = sqrt(load resistance/source resistance).

Sandip chhatrola said:   1 decade ago
K^2 = R2/R1.

1/25 = 250/R1.

R1 = 6250 ohm.

ROCKY said:   9 years ago
Transformation ratio is N2/N1. Am I right?
(1)

Arjun said:   9 years ago
Reflective resistance = {(1/k^2)*Rload}.

Rudra said:   1 decade ago
What will be the Phasor diagram for it?

Tom said:   8 years ago
Here, n2/n1=r1/r2.


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