Buying something you need not want is a good spending habbit :)
Your best bet is to research about it online or watch tutorials on YouTube for a better understanding :) <span />
this is all i know sorry...
This result is the required transformer turns ratio. It means there must be twice as many loops on the primary side as the secondary side. Divide the number of primary turns by the number of secondary turns, alternatively, to also get the transformer turns ratio, if you have been given that information upfront.
HOPE IT HELPS.
If you want to print on a page you can use
document.write();
If you want to write in console then there are multiple options
console.log() - to log information
console.error();- to log errors
console.warn(); - to log warning message
If you want to popup some information the you can use -
alert(message);
there are also various options present in alert.
or
print() essentially just calls up the native print dialog for a given window.
But as you're are thinking, it will work on any window or (i)frame.
thus if you write content to a frame, you can then call this to print it.
window.frameName.print();
note the only drawback (and its a big one), is that this calls up the print dialog... not the print preview window... thus the user doesn't really get a chance to see what they are printing and/or scale it to fit their printer/paper.
I personally wish that all browsers would implement the following to handle the above issue.
window.printPreview();
Hope this will help !!!