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Whats the primary & secondary resistance of this step down transformer ?

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danishdeshmuk

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Whats the primary & secondary resistance of this step down transformer ?

1) Vp = 380 Vac
2) Vs = 220 Vac
3) Ip = 15.78 Amps
4) Is = 27.27 Amps
5) P = 6 KVA

Rp = ?

Rs = ?

thanXXX
 

but your formula indicates that if Rs or Rp any of the two are known then you can find out the other , but the problem is that i have to find out the both ........ : (((

Can't we use the ohm's law to find out the resistance of the primary side & also for the secondary side ???

like that :

Rs = Vs / Is

&

Rp = Vp / Ip

Is it correct ???

thank YoU
 

danishdeshmuk said:
but your formula indicates that if Rs or Rp any of the two are known then you can find out the other , but the problem is that i have to find out the both ........ : (((

Can't we use the ohm's law to find out the resistance of the primary side & also for the secondary side ???

like that :

Rs = Vs / Is

&

Rp = Vp / Ip

Is it correct ???

thank YoU
Click to expand...

Hi friend...........

As per my knowledge, this formulae are correct. And, you gave Is is positive means, the current is flowing in the clock wise direction.
 

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