Ohm's Law

Definition :

Ohm's Law state that the current ( I ) in a direct current electrical circuit is proportional to the voltage ( V ). And inversely proportional to the resistance ( R ). When the temperature is constant.

Appications

Voltage, current and resistance relationship are define by Ohm's Law.

Place finger over letter of unknown,

then known values and their

relationship will be uncovered;

Whenever voltage is supplies to a resistive circuit, the current will flow and generate heat. The heat is power dissipated in the resistor. The symbol is ( P ).

Formula variations of electrical power in relationship to current and voltage;