I don't know how to find the Secondary emf and Maximum core flux.

 

What did you get for (1)?

 

What did you get for (1)?

I1=8.4A
I2=104.1A

 

I need help with the secondary emf and the maximum core flux.

 

Do you remember how the turns ratio relates to primary and secondary voltages?

 

I1=8.4A
I2=104.1A

Okay. So how did you get the 8.4 A? (8.33 A is a better answer, but you're close enough)

Did it, perchance, involve the KVA rating and the input voltage?

Since it is an IDEAL transformer, what is the KVA at the output relative to the input?

If you know the KVA at the output and the current, can you work out the voltage?

Or, another way, if the turns ratio steps up the current, what does it do to the voltage?

 

Do you remember how the turns ratio relates to primary and secondary voltages?

Turns ratio relates to primary and secondary voltages by this way:
V2/V1=N2/N1

 

View attachment 124609 I don't know how to find the Secondary emf and Maximum core flux.

Hi,

The max core flux can be obtained from the "Transformer Equation" but i am not sure what formulas you had learned so far. Does that sound like a typical way to solve this in your course so far?