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Electronic Devices and Circuits

Electronic Devices and Circuits
Power diodes are generally

Silicon diodes
Either of the above
Germanium diodes
None of these

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

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Electronic Devices and Circuits
Piezoelectric quartz crystal resonators find application where

Signal amplification is required
Rectification of the signal is required
Modulation of signal is required
Signal frequency control is required

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Electronic Devices and Circuits
Free electrons exist in

Conduction band
First band
Third band
Second band

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Electronic Devices and Circuits
The most commonly used semiconductor material is

Silicon
Mixture of silicon and germanium
Germanium
None of these

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

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

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