Exam Questions Paper - ECE Questions and Answers

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A radar receiver has a noise figure of 10 dB at 300 K having a bandwidth of 2.5 MHz. The minimum power it can receive is

3.45 x 10^-15 W

1.38 x 10^-15 W

7.5 x 10^-15 W

93.15 x 10^-15 W

Answer : Option D

Explanation :

P_m = kT₀Δ_f(F - 1) = 93.15 x 10^-15 W.

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