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Electronic Devices and Circuits

Electronic Devices and Circuits
Forbidden energy gap in germanium at 0 K is about

5 eV
2 eV
0.78 eV
10 eV

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Electronic Devices and Circuits
Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

Normal to both current and magnetic field
In the direction of current
In arbitrary direction
Antiparallel to magnetic field

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Electronic Devices and Circuits
Light dependent resistors are

Lightly doped semiconductor
Intrinsic semiconductor
Highly doped semiconductor
Either A or B

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Electronic Devices and Circuits
Piezoelectric quartz crystal resonators find application where

Modulation of signal is required
Rectification of the signal is required
Signal frequency control is required
Signal amplification is required

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Electronic Devices and Circuits
Free electrons exist in

Third band
First band
Second band
Conduction band

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Electronic Devices and Circuits
In monolithic ICs, all the components are fabricated by

Diffusion process
None
Evaporation
Oxidation

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