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ELECTRONIC DEVICES AND CIRCUITS

Electronic Devices and Circuits
Power diodes are generally

None of these
Germanium diodes
Either of the above
Silicon diodes

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

An indirect band gap semiconductor
Wideband gap semiconductor
Direct 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?

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

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Electronic Devices and Circuits
Free electrons exist in

Conduction band
Third band
First band
Second band

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