Multiple Choice
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
Correct Answer:
Verified
Correct Answer:
Verified
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