Isnt it a error at http://www.allaboutcircuits.com/vol_2/chpt_9/7.html
Here the Inductance ratio is given as (N secondary/N primary)^2 which should be (Number of primary turns / Number of secondary turns)^2
Now in example, for a step up transformer 125V to 250V is given
EDIT :: here is another thing
Here the Inductance ratio is given as (N secondary/N primary)^2 which should be (Number of primary turns / Number of secondary turns)^2
Now in example, for a step up transformer 125V to 250V is given
And how this ratio could be 2:1 it should be 1:2 as per Primary:Secondary .This concurs with our example of the 2:1 step-up transformer....
EDIT :: here is another thing
Should both be same?The transformation ratio of impedance is the square of the voltage/current transformation ratio, the same as the winding inductance ratio:
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