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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

All of these
Metals
Insulators
Semiconductors

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

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

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

20 A
10 A
1 A
100 A

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

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

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Electronic Devices and Circuits
Which variety of copper has the best conductivity?

Hard drawn copper
Induction hardened copper
Copper containing traces of silicon
Pure annealed copper

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

2 eV
5 eV
0.78 eV
10 eV

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