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Electronic Devices and Circuits

Electronic Devices and Circuits
In a bipolar transistor, the emitter base junction has

Zero or reverse bias
Forward bias
Zero bias
Reverse bias

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

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

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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

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

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Electronic Devices and Circuits
How many free electrons does a p type semiconductor has?

Only those produced by doping
Any of the above
Only those produced by thermal energy
Those produced by doping as well as thermal energy

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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
In a half wave rectifier, the load current flows

For full cycle
For less than fourth cycle
Only for the positive half cycle of the input signal
Only for the negative half cycle of the input signal

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MORE MCQ ON Electronic Devices and Circuits

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