Answer to Question #197146 in Physics for cayyy

Question #197146

The Hall Voltage across a conductor in a 55mT magnetic field is 1.9μV . When used with the same current in a different magnetic field, the voltage across the conductor is 2.8μV .

What is the strength of the second field?

Expert's answer

"B'=B\\frac{V'}{V}\\\\B'=55\\frac{2.8}{1.9}=81\\ m T"

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