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As shown in the schematic below, a rod o...

As shown in the schematic below, a rod of uniform cross-sectional area A and length l is carrying a constant current I through it and voltage across the rod is measured using an ideal voltmeter. The rod is stretched by the appliction of a force F. Which of the following graphs would show tha variation in the voltage across the rod as Junction of the strain,`epsilon`, when the strain is small. Neglect Joule heating.

A


B


C


D


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