The 250 - turn primary coil of a step‑down transformer is connected to an AC line that is 120.0 V (rms). The secondary coil is to supply 12.0 A (rms) at 9.60 V (rms). Assuming no power loss in the transformer, what is the number of turns N s in the secondary coil? N s = turns What is the rms current i p, rms in the primary coil?

Number of turns in secondary is 20

Current in primary is 0.96 A  

Explanation:

We have given number of turns in primary

Voltage across primary of transformer

Current in secondary coil

Voltage across secondary

For transformer we know that

So

So number of turns in primary is 20

Now

Current in primary of transformer is 0.96 A

i don't know that i agree with that but what's the question ?

anchor = archer //