Exam-style question
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Explain how the Hall voltage in a current-carrying conductor changes with an increase in the magnetic field strength.
Model answer
What a good answer should say
- As the magnetic field strength increases, the Hall voltage also increases.
- This is because a stronger magnetic field exerts a greater Lorentz force on the charge carriers, leading to a larger deflection and thus a higher potential difference across the conductor.
Explanation
Why this works
This answer effectively explains the cause (increase in magnetic field strength), the mechanism (greater Lorentz force), and the effect (increased Hall voltage), illustrating the relationship between these variables in the context of the Hall effect.
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