Question:
A Hall sensor is based on the principle of _________
A Hall sensor is based on the principle of _________
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The Hall sensor operates on the principle of the Lorentz force, where a magnetic field interacts with a current-carrying conductor to generate a voltage.
Updated On: Nov 25, 2025
- Photoelectric effect
- Seebeck effect
- Piezoelectric effect
- Lorentz force
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Hall sensor.
A Hall sensor operates based on the Lorentz force, which is the force experienced by a charged particle moving through a magnetic field. The Hall effect occurs when a current-carrying conductor is placed in a magnetic field, and it generates a voltage perpendicular to both the current and the magnetic field. This voltage is measured by a Hall sensor.
Step 2: Analyzing the options.
- (A) Incorrect, the photoelectric effect deals with the emission of electrons from a material when it absorbs light, not related to Hall sensors.
- (B) Incorrect, the Seebeck effect refers to the generation of an electric voltage due to temperature differences, not related to Hall sensors.
- (C) Incorrect, the piezoelectric effect generates voltage due to mechanical stress, not related to Hall sensors.
- (D) Correct, the Hall sensor is based on the principle of Lorentz force, which causes the Hall voltage when a magnetic field is applied. Step 3: Conclusion.
The correct answer is (D) Lorentz force.
A Hall sensor operates based on the Lorentz force, which is the force experienced by a charged particle moving through a magnetic field. The Hall effect occurs when a current-carrying conductor is placed in a magnetic field, and it generates a voltage perpendicular to both the current and the magnetic field. This voltage is measured by a Hall sensor.
Step 2: Analyzing the options.
- (A) Incorrect, the photoelectric effect deals with the emission of electrons from a material when it absorbs light, not related to Hall sensors.
- (B) Incorrect, the Seebeck effect refers to the generation of an electric voltage due to temperature differences, not related to Hall sensors.
- (C) Incorrect, the piezoelectric effect generates voltage due to mechanical stress, not related to Hall sensors.
- (D) Correct, the Hall sensor is based on the principle of Lorentz force, which causes the Hall voltage when a magnetic field is applied. Step 3: Conclusion.
The correct answer is (D) Lorentz force.
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