(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://img169.imageshack.us/img169/8502/73860646mw1.jpg [Broken]

Given

R3= 10.0Ω

IR1= 2.0A

Prove that Vpri =30( 10R1+R1R2+10R2)/R2

2. Relevant equations

3. The attempt at a solution

Current across R2= 2xR1/R2

Current across R3= 2R1/R2 +2A

Total Voltage in sec coil= [2R1/R2 +2] x10 + 2R1

= 20R1+20+2R1R2/R2

Im stuck here currently=( any help?

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# Need help on transformers

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