The output

The output voltage of the transformer is 880 V. The secondary coil has 1200 turns. Find the voltage to which the primary coil is connected and how many turns it has if a current of 1 A flows through it. Transformation ratio k = 4. What current flows through the secondary coil?

Correct answer:

U1 =  220 V
n1 =  300
I2 =  0.25 A

Step-by-step explanation:

U2=880 V n2=1200 I1=1 A k=4  k=U2/U1 U1=U2/k=880/4=220 V
k=n2/n1 n1=n2/k=1200/4=300
P=I1 U1=1 220=220 W P=I2 U2  I2=P/U2=220/880=0.25 A

Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips to related online calculators
Check out our ratio calculator.

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: