The potential difference across a copper wire is 2.0 V when a current of 0.4 A flows through it. The resistance of the wire is?A5.0 ΩB0.5 ΩC0.2 ΩD2.5 ΩAnswer: A. 5.0 Ω Read Explanation: The correct answer is (a) 5.0 Ω Read more in App