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2. Under what conditions is Ohm's law applicable? |
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Answer» Ohm's Law:It states that the current through any two points of the conductor is directly proportional to the potential difference applied across the conductor provided that the physical conditions remains constant.Unit:It is measured in ohm represented asΩ.Explanation:When an electric potential difference is applied across the conductor, the current passes through it. Here some of the current is apposed by the resistance of the conductor in the circuit. Thus Ohm's Law is the relation between current, voltage and resistance.According to Ohm's Law:Vα IV = I RWhere R (resistance) is the constant or proportionality.Ohm's Law is applicable only if all the physical conditions for example temperature, material or dimensions of the wire remain constant. |
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