- #1

predentalgirl1

- 67

- 1

**The primary coil of an ideal transformer has 720 turns, and the secondary coil has 180 turns. If the primary coil carries 15 A at a voltage of 120 V, what are (a) the voltage and (b) the output current of the secondary coil?**

Given that,

Np = 720

Ns = 180

I p = 15 A

Is =?

Ep = 120 V

Es =?

i have,

Ep/Es = Is/Ip = Np/Ns

Therefore,

Out put current Is = I p x Np/Ns

= 15 x 720/180

= 60 A

Voltage = Ep x Ip/Is

= 120 x 15/60

= 30 V

Given that,

Np = 720

Ns = 180

I p = 15 A

Is =?

Ep = 120 V

Es =?

i have,

Ep/Es = Is/Ip = Np/Ns

Therefore,

Out put current Is = I p x Np/Ns

= 15 x 720/180

= 60 A

Voltage = Ep x Ip/Is

= 120 x 15/60

= 30 V