Electronics - Transformers - Discussion

Discussion Forum : Transformers - General Questions (Q.No. 7)
The transformer turns ratio determines
the ratio of primary and secondary voltages
the ratio of primary and secondary currents
the reflected impedance
all of the above
Answer: Option
No answer description is available. Let's discuss.
6 comments Page 1 of 1.

Louie bacalla said:   4 years ago
Voltage ratio: v1/V2=N1/N2 = a
Current ratio: I1/I2=N2/N1 = 1/a
Ohmic ratio: Z1/Z2=R1/R2 = X1/X2 = (N1/N2)squared = (a) squared
Therefore, the correct answer is D.

Ajeet kumar chaubey said:   9 years ago
Only option is "A" is correct. Although if question is: what you can determine than all the above, because.

Turns ratio= I2/I1 and reciprocal of it will make the "B" correct.

About, reflected impedance it is basically based on transformation ratio which is again reciprocal of turns ratio.

Abhay said:   1 decade ago
Reflected impedance is (R2/R1)^1/2 which is directly proportional to transformation ratio.

Sukumar said:   1 decade ago
I think D is not correct option because the option B statement is wrong. Ratio of secondary and primary currents if it is so the option D is correct.

Hameed said:   1 decade ago
What is reflected impedance?

Shamraay said:   1 decade ago
Transformer has one formula = Vp/Vs = Is/Ip = Np/Ns.

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