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Electronic Devices and Circuits

Electronic Devices and Circuits
When avalanche breakdown occurs covalent bonds are not affected.

False
True

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

All of these
Semiconductors
Metals
Insulators

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Electronic Devices and Circuits
A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is

100
1.01
99
0.99

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Electronic Devices and Circuits
If too large current passes through the diode

All holes will freeze
All electrons will leave
Diode will emit light
Excessive heat may damage the diode

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Electronic Devices and Circuits
In a half wave rectifier, the load current flows

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

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

Diffusion process
None
Oxidation
Evaporation

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