Topic: Analog Circuits
Noise figure of an amplifier depends on
- A. Bandwidth
- B. Output power
- C. Power input
- D. None of the above
Answer: D. None of the above
Explanation: The Noise Figure (NF) is a measure of degradation of the Signal-to-Noise Ratio (SNR) caused by components in a signal chain. It is an intrinsic property of the amplifier determined by its internal components and operating temperature, not by the input/output signal power or the channel bandwidth.