The Y factor of an amplifier obtained by measuring the noise figure a – McqOptions

MCQOPTIONS

1.	The Y factor of an amplifier obtained by measuring the noise figure at the temperatures 77 K and 290 K is 2.7 db. Then the equivalent noise temperature of the amplifier is:
A.	100 K
B.	150 K
C.	170 K
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

No Comment Found

Related MCQs

Equivalent noise temperature associated with an arbitrary white noise source is:
Excess noise ratio is defined as the ratio of generator noise to the noise associated with room temperature
The noise power associated with a two port network modeled as thevinin equivalent is:
The Y factor of an amplifier obtained by measuring the noise figure at the temperatures 77 K and 290 K is 2.7 db. Then the equivalent noise temperature of the amplifier is:
An X- band amplifier has a gain of 20 dB and a gain of 1GHz bandwidth. Noise figure of the amplifier is -62 dBm at 290 K and -64.7 dBm at 77 K. then the Y factor of the amplifier is :
Flicker noise occurs in solid-state components and vacuum tubes.a) Trueb) False 4.________ noise is caused by random motion of charges in ionized gas.
EXCESS_NOISE_RATIO_IS_DEFINED_AS_THE_RATIO_OF_GENERATOR_NOISE_TO_THE_NOISE_ASSOCIATED_WITH_ROOM_TEMPERATURE?$
Equivalent noise temperature associated with an arbitrary white noise source is:$
The noise power associated with a two port network modeled as thevinin equivalent is?
An amplifier has a noise equivalent temperature of 170 K. If the amplifier is used with a source having an equivalent noise temperature of TS=450 K, the output noise power of the amplifier is: