A metal bar is 20 cm long and has a rectangular cross-section measuring 1.0 cm × 2.0 cm.What is the voltage across its length when there is a 4000-A current through it? The resistivity of the metal is 1.68 × 10^-8 Ω ∙ m. A)0.67 V B)0.34 V C)0.067 V D)0.034 V

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The Answer of A metal bar is 20 cm long and has a rectangular cross-section measuring 1.0 cm × 2.0 cm.What is the voltage across its length when there is a 4000-A current through it? The resistivity of the metal is 1.68 × 10^-8 Ω ∙ m. A)0.67 V B)0.34 V C)0.067 V D)0.034 V

A Metal Bar Is 20 Cm Long and Has a Rectangular