Download Aptitude Crack
img not found img not found

Magnetism and Electromagnetism

Q1:

A Hall effect sensor

A 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.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.