/sci/ - Science & Math

>>11478540
>Physically, what is going on?
One loop = one unit of flux. N loops = N units of flux.
>increasing the gauge of the secondary wire would increase the flux?
By gauge you mean the EMF driving the current? Sure it simply increases the flux you have through the loop, but the fact that it's proportional to the number of loops on the solenoid doesn't change. With one loop you can in principle tune [math]B[/math] such that [math]\Phi[/math] is equivalent to that with multiple loops, but remember that your EMF must also fight against the eddy current generated from you tuning the magnetic field so you'll actually need a lot more power to drive the current necessary for that. This is why people just loop wires around solenoids since that gets you double the flux "for free".