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ELECTRONIC DEVICES AND CIRCUITS

Electronic Devices and Circuits
Power diodes are generally

Silicon diodes
Germanium diodes
None of these
Either of the above

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

Wideband gap semiconductor
An indirect band gap semiconductor
Narrowband gap semiconductor
Direct band gap semiconductor

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

True
False

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

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

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Electronic Devices and Circuits
Free electrons exist in

Conduction band
First band
Second band
Third band

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