OHM'S LAW
ohm's law defines the relation ships between(P)power,(E)voltage,(I)current,and(R)resistance
one ohm is the resistance value through which one voltwith maintain acurrent of one ampere
I=V/R
electric current=voltage/resisitance
I)current is what flows on awire or conductor. it flows from -to+ on the surface of a conductor.
.current measured in (A)ampre or amps
E)voltage is the difference in electrical potential between two point in acircuit.It'sthe push or pressure behind current flow through acircuit,and measuredts in (V)volts
R)resisitance determines how much current will flow through a component. resistors are used to control voltage & current levels. It's measured in ohm
NOTICE
as u increase voltage,current flow increases
as u increase resistance,current flow decreases
resistance cannot be changed by changing voltage orcurrent
resistance in acircuit is aphysical constant
the principe is named after the German scientist ( Georg simon ohm) s
lMathematically, Ohm's Law for DC circuits can be stated asthree equations
E = IR
I = E/R
R = E/I
الرئيسية 
