Question

A strip of copper 2.1 cm wide carries a current I = 28.5 A to the right (see figure below)


A strip of copper 2.1 cm wide carries a current I = 28.5 A to the right (see figure below). The strip is in a magnetic field B = 4.5 T into the page. 

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 (a) What is the direction of the average magnetic force on the conduction electrons? 

  •     upward 

  •     downward


 (b) The Hall voltage is 18.5 μV. what is the drift velocity? 

_______ mm/s

2 0
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