Electronic Devices and Circuits Questions and Answers – The Hall Effect

This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “The Hall Effect”.

1. In the Hall Effect, the directions of electric field and magnetic field are parallel to each other.
The above statement is
a) True
b) False
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2. Which of the following parameters can’t be found with Hall Effect?
a) Polarity
b) Conductivity
c) Carrier concentration
d) Area of the device
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3. In the Hall Effect, the electric field is in x direction and the velocity is in y direction. What is the direction of the magnetic field?
a) X
b) Y
c) Z
d) XY plane
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4. What is the velocity when the electric field is 5V/m and the magnetic field is 5A/m?
a) 1m/s
b) 25m/s
c) 0.2m/s
d) 0.125m/s
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5. Calculate the hall voltage when the Electric Field is 5V/m and height of the semiconductor is 2cm.
a) 10V
b) 1V
c) 0.1V
d) 0.01V
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6. Which of the following formulae doesn’t account for correct expression for J?
a) ρv
b) I/wd
c) σE
d) µH
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7. Calculate the Hall voltage when B=5A/m, I=2A, w=5cm and n=10²⁰.
a) 3.125V
b) 0.3125V
c) 0.02V
d) 0.002V
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8. Calculate the Hall Effect coefficient when number of electrons in a semiconductor is 10²⁰.
a) 0.625
b) 0.0625
c) 6.25
d) 62.5
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9. What is the conductivity when the Hall Effect coefficient is 5 and mobility is 5cm² /s.
a) 100 S/m
b) 10 S/m
c) 0.0001S/m
d) 0.01 S/m
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10. In Hall Effect, the electric field applied is perpendicular to both current and magnetic field?
a) True
b) False
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Sanfoundry Global Education & Learning Series – Electronic Devices and Circuits.

To practice all areas of Electronic Devices and Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers.