# Electronics - Transformers - Discussion

Discussion Forum : Transformers - General Questions (Q.No. 7)

7.

The transformer turns ratio determines

Discussion:

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.

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.

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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