Transformer
1. Transformer Data
After getting 10 V~n pairs, you can fit the data using LINEST, and then get an expression like
V = mn + b,
which would help you to predict relationship between the output voltage and the number of coils.
2. 1.0V Transformer
The above equation can be rewritten as
,
you can use error propagation to get the uncertainty of n;
or fit the data as,
n = m' V + b',
then when V = 1.0 volt, the uncertainty of n can also be easily derived.
http://images3.wikia.nocookie.net/transformers/images/a/a5/MovieOptimusPrime_promorender3.jpg