ECE :: Exam Questions Paper
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Polarization is a measure of
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Thin gate oxide in a CMOS process in preferably grown using
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Which of the following devices is a 'hot-electron' diode?
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If D, G and η denote the directly, power gain and efficiency of an antenna, then which of the following relation holds :
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A system described by the transfer function
is stable. The constraints on a and K are -
Consider a random noise voltage which has a uniform density function as shown in the figure and is known to be white.
If the noise is the first quantized into 0.1 V steps, starting at 0 V level, and then readings made of 10 per second. The information content of the reading is : -
Consider the following statements:
The bias stability of an emitter-bias amplifier circuit improves by- decreasing the value of RB
- increasing the value of RE
- decreasing the value of RB
- increasing the value of RB
- increasing the value of RC
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Consider the following:
- Si
- Ge
- GaAs
- InP
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Which device can detect the presence of both forward and backward waves in a waveguide?
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The correct sequence of subsystems in an FM receiver is
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A.
Mixer, RF amplifier, Limiter, IF amplifier. Discriminator, Audio amplifier
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B.
RF amplifier, Mixer, IF amplifier, Limiter, Discriminator, Audio amplifier
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C.
RF amplifier, Mixer, Limiter, Discriminator IF amplifier, Audio amplifier
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D.
Mixer, IF amplifier, RF amplifier, Audio amplifier, Discriminator
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