GATE-PH SERIES Electromagnetic-theory
Semiconductor
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2024 Chapter Questions 1 MCQs
01
PYQ 2024
hard
electromagnetic-theory ID: gate-ph-
An extrinsic semiconductor shown in the figure carries a current of 2 mA along its length parallel to the axis.
When the majority charge carrier concentration is and the sample is exposed to a constant magnetic field applied along the direction, a Hall voltage of 20 mV is measured with the negative polarity at the plane. Take the electric charge as C. The concentration of minority charge carriers is negligible. Which of the following statements is/are true?
When the majority charge carrier concentration is and the sample is exposed to a constant magnetic field applied along the direction, a Hall voltage of 20 mV is measured with the negative polarity at the plane. Take the electric charge as C. The concentration of minority charge carriers is negligible. Which of the following statements is/are true?
1
The majority charge carrier is electron
2
The magnitude of the applied magnetic field is 1 Tesla
3
The electric field corresponding to the Hall voltage is in the +y direction
4
The magnitude of the Hall coefficient is .