Exam-style question
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How does increasing the current in a conductor affect the Hall voltage produced?.
- A.The Hall voltage decreases
- B.The Hall voltage remains constant
- C.The Hall voltage increases
- D.The Hall voltage becomes negative
Model answer
What a good answer should say
- The Hall voltage increases
Explanation
Why this works
The cause is an increase in the current flowing through the conductor. The mechanism is that a higher current results in a greater number of charge carriers moving through the conductor, which enhances the effect of the Lorentz force acting on these carriers.
The effect is an increase in the Hall voltage generated across the conductor. The consequence is that this increased Hall voltage can provide more accurate measurements of the magnetic field strength.
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