A buffer amplifier is usually associated with
(A) High input resistance (B) Low output resistance
(C) Unity Voltage Gain (D) All Of the above
Description : When measuring a transmitter’s frequency against a suitable standard, the frequency to be measured is taken from the A. oscillator stage B. intermediate amplifier C. buffer stage D. final RF stage
Last Answer : D. final RF stage
Description : What is the purpose of the buffer amplifier?
Last Answer : Reduce interaction between oscillator and load.
Description : In Unix operating system, special files are used to : (A) buffer data received in its input from where a process reads (B) provide a mechanism to map physical device to file names (C ... pointers associated with i-nodes (D) store information entered by a user application program or utility program
Last Answer : (B) provide a mechanism to map physical device to file names
Description : A differential amplifier has a differential gain of 28000 and CMRR is 60 dB. What will be the value of common mode gain? A) Ac = 0.125 B) Ac = 0.33 C) Ac = 3 D) Ac = 28
Last Answer : A differential amplifier has a differential gain of 28000 and CMRR is 60 dB. What will be the value of common mode gain? A) Ac = 0.125 B) Ac = 0.33 C) Ac = 3 D) Ac = 28
Description : What is the efficiency of Class-B amplifier? A) 68.50% B) 78.50% C) 88.50% D) 98.50%
Last Answer : What is the efficiency of Class-B amplifier? A) 68.50% B) 78.50% C) 88.50% D) 98.50%
Description : Which one of the following is another name for common-collector amplifier? A) Source follower B) Collector follower C) Base follower D) Emitter follower
Last Answer : Which one of the following is another name for common-collector amplifier? A) Source follower B) Collector follower C) Base follower D) Emitter follower
Description : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector
Last Answer : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector
Description : The effect of a finite gain of an operational amplifier used in an integrator is that (A) it would not integrate (B) the slope of the output will vary with time (C) the final value of the output voltage will reduce (D) there will be instability in the circuit
Last Answer : The effect of a finite gain of an operational amplifier used in an integrator is that there will be instability in the circuit
Description : In a klystron amplifier the input cavity is called: (1) Buncher (2) Catcher (3) Pierce gun (4) Collector
Last Answer : In a klystron amplifier the input cavity is called: Buncher.
Description : Negative feedback in amplifier: (1) Improves the SNR at input (2) Improve SNR at output (3) Reduces distortion (4) Decreases bandwidth
Last Answer : Negative feedback in amplifier: Reduces distortion.
Description : Which amplifier will be preferred for highest gain? (1) Darlington pair (2) Cascade amplifier (3) Cascode amplifier (4) Depends on the circuitry
Last Answer : Cascode amplifier will be preferred for highest gain.
Description : For biomedical applications the mostly used amplifier is A) Single ended amplifier B) Differential amplifier C) Inverting operational amplifier D) Chopper amplifier
Last Answer : Inverting opamp
Last Answer : The output stage of a practical amplifier is always Transformer coupled
Last Answer : No. of 20 watts loudspeakers permitted to connect an 250 watt amplifier are 12.
Last Answer : In a CB amplifier the maximum efficiency could be 25%.
Last Answer : In deriving ac equivalent circuit for an amplifier circuit we short circuit all capacitors.
Last Answer : For an amplifier, the coupling method which gives the highest gain is Transformer coupling.
Last Answer : Active region of BJT act as amplifier.
Description : What is operational amplifier?
Last Answer : Operational amplifier is an amplifier which amplifies the input signal when we pass a low voltage signal .It has two terminals inverting and non inverting. It is an active device because it ... of negative feedback it provides the output waveform similar to the input waveform (truely amplified )
Description : Refers to one of the front end circuit of a VHF TV superheterodyne receiver which is usually a separate circuit coupled to the mixer. A. Antenna feed B. AGC C. RF amplifier D. Local oscillator
Last Answer : D. Local oscillator
Description : The final power amplifier in an FM transmitter usually operates class ______. A. AB B. C C. B D. A
Last Answer : B. C
Description : What type coupling is usually used to couple the output from a power amplifier?
Last Answer : Transformer coupling.
Description : The final power amplifier in an FM transmitter usually operates class ___
Last Answer : C
Description : The final power amplifier in an FM transmitter usually operates class ______.
Description : A practical current source is usually represented by a. A resistance in series with an ideal current source. b. A resistance in parallel with an ideal current source. c. A resistance in parallel with an ideal voltage source. d. None of the above.
Last Answer : A practical current source is usually represented by a resistance in parallel with an ideal current source.
Last Answer : The anode material is usually Nickel.
Last Answer : Rheostats are usually rated in Watts and Amperes.
Last Answer : Radar antennas are usually Parabolic dishes.
Last Answer : Television receiver antenna is usually Yagi antenna.
Description : Why can't Mg(OH)2 act as a buffer?
Last Answer : http://www.jiskha.com/display.cgi?id=1427999118
Description : Is it a waste of time to wait for 1080p video to buffer if your laptop has a1366x738 resolution?
Last Answer : answer:Either your monitor or your video player will be down-rez'ing the 1080p version to fit your screen if you use the 1080p version. Why not let the pros do the down-rez and use their 720p version ... someday you'll get a higher rez screen. That would be a worthwhile reason to get the big one.
Description : What did they use as a buffer for docking boats before there were tires?
Last Answer : They used elaborately knotted thick ropes to make fenders.
Description : How can I use the reverse method of the string buffer using Java?
Last Answer : Show your attempt at using reverse() yourself, and one of us might help you fix/improve it. No one is going to write your homework for you.
Description : What kind of floor cleaner do you use with a floor buffer?
Last Answer : I have heard that Murphy’s Oil Soap is good on Hardwood floors.
Description : What grasses or sedges have a substantial network of roots to hold the soil in place in a pond buffer?
Last Answer : Need Answer
Description : which of the following best describes a solution that contains a buffer?
Last Answer : A citric acid is added to the solution but the pH of the solution does not change
Description : What is Buffer Solution ?
Last Answer : A solution in which a small amount of acid , alkali or solvent is added but the pH of the solution remains unchanged is called a buffer solution . Buffer solutions are usually made with a weak ... H₂CO₃ + NaHCO₃ alkaline buffer. This is known as carbonate buffer or carbonate-bicarbonate.
Description : What is Buffer Action ?
Last Answer : Adding a small amount of weak acid or weak alkali to the buffer solution from the outside is called the buffer action of the solution.
Description : What is Buffer ?
Last Answer : The buffer is the memory in which the data is stored temporarily before the data is permanently stored on disk .
Description : What would be the reduction potential of an electrode at 298 K , which originally contained ` 1K_(2)Cr_(2)O_(7)` solution in acidic buffer solution of
Last Answer : What would be the reduction potential of an electrode at 298 K , which originally contained ` 1K_(2)Cr_(2)O_(7)` ... V` C. `1.187 V` D. None of these
Description : What secretes a buffer that neutralizes the acidity of stomach acid?
Last Answer : Need answer
Description : Why did Stalin want to create buffer zone?
Description : Why water is a very efficient thermal buffer?
Last Answer : Water has a high heat capacity, which can be described as"thermal inertia". That means that water can absorb a large amountof heat energy.
Description : When Spain owned Louisiana it was a buffer zone between the british colonies and?
Last Answer : What is the answer ?
Description : What is the function of BL buffer in DNA extraction?
Last Answer : In a DNA extraction, the purpose of a buffer is to solubilizeDNA as well as RNA. Because of this, it prevents the DNA fordegrading.
Description : Did change in pH in the biological materials respond more like the water or the phosphate buffer Explain?
Description : What is the definition of a buffer in chemistry?
Last Answer : A buffer is used to maintain a constant pH.
Description : Where can I rent a floor machine buffer in Houston?
Last Answer : Try calling the company Competition Flooring & Remodeling, they might have the tools that you need. Or you can visit a local Home Depot or Lowes to see what they have available.
Description : Does the Western Digital 1TB My Book Essential Edition have a buffer?
Last Answer : Yes; this hard drive has a 16 MB buffer.