Ok, I hope You know Google
, try pressing the link
Once I've read a nice explanation of Current, Voltage
is. It goes something along these lines.
If You compare electricity to Your house water system:Voltage
is a Water PipeCurrent
is a Water FlowResistance
is a Valve(or a tap)
Now, You can imagine that the bigger the Water Pipe
the bigger Water Flow
Same with electricity, the bigger the Voltage
, the more Current
You can get.
If You have a Valve(or a tap)
You can reduce Water Flow
with it because size of the Water Pipe
is reduced at that spot (if You get what I mean), hence with Resistance (Resistor)
you can reduce Current
by creating a Voltage
drop at a certain spot in a circuit.
That's what Ohm's Law
There is a nice free simulation software called Yenka
that has loads of useful and interactive examples on basic electronics.