I think so it doesn't happen normally. But the biggest reasearch ever done and costed billions of dollars was this. The research was based on it, why the one effects the another?
Suppose two particles or molecules are generated (produced) together. If one molecule is taken away from the another, let us say to another city. If we make some certain changes in anyone of them, e.g if we change its motion if it was in clock wise and we change it to anti-clock wise. So by...
http://imageschip.com/image-2CC0_4D720BE9.jpg
In AC circuit when the voltage is zero the current is maximum...
When it reaches to 90 then the current is zero...
And same as for the other cycles till 360...
Why the current is maximum when the voltage is zero and when the voltage is maximum the...