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ELECTRONIC DEVICES AND CIRCUITS

Electronic Devices and Circuits
Power diodes are generally

None of these
Silicon diodes
Either of the above
Germanium diodes

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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
Wideband gap semiconductor
An indirect band gap semiconductor
Narrowband gap semiconductor

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

False
True

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

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

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Electronic Devices and Circuits
Free electrons exist in

Third band
First band
Conduction band
Second band

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