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In a diode schematic, the anode is represented by a triangle.

The barrier potential for silicon is 0.7v and for germanium is 0.3v.

QAM demodulation is susceptible to all the listed issues.

Total number of electrons emitted in a time interval in photodetector follows Poisson’s distribution

Thermal noise is Gaussian distribution with mean 0

A varistor is a voltage-dependent resistor.

It maintains constant amplitude of angle modulated wave

Preemphasis-Deemphasis circuit enhances signal to noise ratio by a power ratio of 21.25 = 13.27 dB

Noise spectral density of phase modulated wave is independent of frequency

Conventional AM has less signal to noise ratio with respect to baseband system

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