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Electronic Devices and Circuits

Electronic Devices and Circuits
As compared to bipolar junction transistor, a FET

Is less noisy
Has better thermal stability
Has higher input resistance
All of these

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Electronic Devices and Circuits
Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface.

False
True

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Electronic Devices and Circuits
Silicon is not suitable for fabrication of light emitting diodes because it is

Direct band gap semiconductor
An indirect band gap semiconductor
Narrowband gap semiconductor
Wideband gap semiconductor

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

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

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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
Antiparallel to magnetic field
In the direction of current
In arbitrary direction

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Electronic Devices and Circuits
For a P-N diode, the number of minority carriers crossing the junction depends on

None of these
Potential barrier
Forward bias voltage
Rate of thermal generation of electron hole pairs

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