Question

The signal input to a given amplifier is made up of 100 mΩ signal power and 1 mΩ noise power. The amplifier contributes an additional 100 mΩ of noise and has a power gain of 20 dB. The output signal-to-noise ratio is

a.

100

b.

50

c.

10

d.

5

Answer: (b).50

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. The signal input to a given amplifier is made up of 100 mΩ signal power and 1 mΩ noise power. The amplifier contributes an additional 100 mΩ of noise and has a power gain of 20 dB....

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. In order to protect a MOSFET against damage from any stray voltage at the gate

Q. A dc amplifier can operate

Q. Assertion (A): In a common source amplifier with source terminal at ac ground the voltage gain is about gm rd

Reason (R): A common source amplifier is a source follower circuit

Q. Thermal runaway will take place if the quiescent point is such that

Q. In applications where __________ input resistance is needed, the JFET is preferred to the bipolar transistor.

Q. CC circuit is suitable for impedance matching.

Q. Which of the following number specification refers to FET with one gate?

Q. Which of the following plot can be directly used to determine β?

Q. The emitter follower steps up the impedance by a factor of

Q. In a tuned class C power amplifier the quiescent value of collector to emitter voltage is equal to (VCC denotes collector battery voltage)

Q. Volt equivalent temperature in a PN Junction diode is

Q. Primary advantage of a crystal oscillator is that

Q. The conversion or collector circuit efficiency is a measure

Q. A transistor amplifier is operating in class A mode. If a transformer is connected for impedance matching, the efficiency will

Q. A capacitor input filter relies on

Q. RECTIFIER : OSCILLATOR ::

Q. A voltage doubler circuit uses

Q. Which amplifier will be preferred for highest gain?

Q. Which of the following are synonymous?

Q. Which of the following contributes to harmonics distortion in amplifiers?

Recommended Subjects

Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!