hi, I hope ur good and happy and happier... I a little confused in ohms law...for 2amp 20volt we need 40w resistor???!!!! (p=vi)
and one more question...if my i=3A and r=1000ohm then my voltage had to be 3000V?!!is this example another way to solve??
to this law power supply or battery have only voltage!and in reality, I have for example dc power 24v 3 Amp so that amp how effect in ohm law? how I can consider ps current to ohm law?
and one more question...if my i=3A and r=1000ohm then my voltage had to be 3000V?!!is this example another way to solve??
to this law power supply or battery have only voltage!and in reality, I have for example dc power 24v 3 Amp so that amp how effect in ohm law? how I can consider ps current to ohm law?