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Electronic Devices and Circuits

Electronic Devices and Circuits
The forbidden energy gap between the valence band and conduction band will be least in case of

Insulators
All of these
Semiconductors
Metals

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Electronic Devices and Circuits
In the sale of diamonds the unit of weight is carat. One carat is equal to

200 mg
100 mg
150 mg
500 mg

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Electronic Devices and Circuits
Piezoelectric quartz crystal resonators find application where

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

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Electronic Devices and Circuits
In a semiconductor diode, the barrier offers opposition to

Holes in P-region only
Majority carriers in both regions
Majority as well as minority carriers in both regions
Free electrons in N-region only

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Electronic Devices and Circuits
Which of the following could be the maximum current rating of junction diode by 126?

10 A
100 A
1 A
20 A

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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

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

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