A heavy bus bar is 20. cm long and of rectangular cross-section, 1.0 cm × 2.0 cm. What is the voltage drop along its length when it carries 4000. A? (The resistivity of copper is 1.69 × 10^-8 $\Omega$-m.)

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The Answer of A heavy bus bar is 20. cm long and of rectangular cross-section, 1.0 cm × 2.0 cm. What is the voltage drop along its length when it carries 4000. A? (The resistivity of copper is 1.69 × 10^-8 $\Omega$-m.)

A Heavy Bus Bar Is 20 Ω\OmegaΩ -M)

A Heavy Bus Bar Is 20 $\Omega$ -M)