

Magnetism and Electromagnetism - Technical MCQs
Q1: A Hall effect sensorA exists only in theory
B is a noncontacting magnetic sensor
C can operate only a few times before failure
D produces very large voltages
ANS:B - is a noncontacting magnetic sensor Hall effect is a sensor which is use to sense the magnetic field with out any physical connection to the magnetic field generating object. It operate in such a way that when a current carrying conductor is placed in a magnetic field it it induce a voltage in a conductor which will be perpendicular to the magnetic field and current. |


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