Electronics and Communication Engineering - Electronic Devices and Circuits

46.
Fermi level is the maximum energy that an electron can possess at 0 K.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
The voltage across the secondary of the transformer in a half wave rectifier (without any filter circuit) is 25 volts. The maximum voltage on the reverse biased diode will be
100 V
50 V
25 V
12.5 V
Answer: Option
Explanation:
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48.
The residual resistivity of a binary alloy at 0°K is
the sum of the residual resistivities of the component metals
the difference of the residual resistivities of the component metals
the product of the residual resistivities of the component metals
depend on the concentration of the minor component in the alloy
Answer: Option
Explanation:
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49.
Which of the following insulating material is restricted to temperatures below 100°C?
Micanite
Asbestos
Teflon
Polythene
Answer: Option
Explanation:
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50.
- ve feedback in an amplifier
reduces gain
increase frequency and phase distortion
reduce bandwidth
increase noise
Answer: Option
Explanation:
No answer description is available. Let's discuss.