Hall effect sensor (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What creates the Hall voltage in a Hall effect sensor?
What creates the Hall voltage in a Hall effect sensor?
Current-carrying semiconductor in magnetic field
In which direction is the Hall voltage relative to the current flow?
In which direction is the Hall voltage relative to the current flow?
Perpendicular to current flow
What is the Hall voltage proportional to?
What is the Hall voltage proportional to?
Magnetic flux density
When tracking object orientation, what changes as the object rotates?
When tracking object orientation, what changes as the object rotates?
Component of magnetic flux detected
In position detection, what does Hall voltage depend on?
In position detection, what does Hall voltage depend on?
Number of field lines intersecting sensor
What does a tachometer using a Hall effect sensor measure?
What does a tachometer using a Hall effect sensor measure?
Speed of rotation
In one tachometer setup, where is the magnet attached?
In one tachometer setup, where is the magnet attached?
To the rotating component
What signal property determines rotational speed in a tachometer?
What signal property determines rotational speed in a tachometer?
Frequency of pulsed signal
What is the maximum measurement capability of Hall effect tachometers?
What is the maximum measurement capability of Hall effect tachometers?
Over kHz
Why is the non-contact mechanism of Hall tachometers advantageous?
Why is the non-contact mechanism of Hall tachometers advantageous?
No additional frictional forces