How resistance is measured in a circuit?
Ohm’s Law states that the current flowing in an electric circuit is directly proportional to the applied voltage and inversely proportional to the resistance of the material. Ohm’s Law equation V= I x R I= V/ R R= V/ I where I- current,R-resistance V-voltage R- resistance the Units are ampere (A) for current , ohms (Ω) for resistance, and Volts(V) for voltage Resistance can be measured in a circuit by using multimeter. The principle that the multimeter uses to measure resistance is the ohms law .The multimeter develops a small known voltage between its terminals. When a resistor is connected across these terminals a current will flow.