states that the electric current flowing through a metallic wire is directly proportional to the potential difference ' V ' across its ends provided its temperature remains the same.

Correct option is D

​$$\bullet \textbf{Ohm’s Law} \text{ states that the current } (I) \text{ through a conductor is } \textbf{directly proportional} \text{ to the voltage } (V) \text{ across it, } \textbf{provided the temperature remains constant.}\\\bullet \text{Mathematically, it is expressed as:}\\V = IR\\\text{where:}\\\bullet \quad V = \text{Voltage (Volts)}\\\bullet \quad I = \text{Current (Amperes)}\\\bullet \quad R = \text{Resistance (Ohms)}$$​​