Use the Following Figure for the Next Problem $\mu$ V the Electronic Charge Is 1

question 53

Multiple Choice

Use the following figure for the next problem.

-A metal strip 1.5 cm wide and 0.20 cm thick carries a current of 15 A in a uniform magnetic field of 1.5 T. The Hall emf is 5.3 $\mu$ V. The electronic charge is 1.6 * 10^-19 C. The number density of the charge carriers in the strip is approximately

• A) 2.6*10²⁸ electrons/m³
• B) 1.3 * 10²⁶ electrons/m³
• C) 1.3 * 10²⁸ electrons/m³
• D) 4.7 * 10²⁸ electrons/m³
• E) 2.9 * 10²³ electrons/m³

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