1 Answer

Answer :

In a CB amplifier the maximum efficiency could be 25%.

Related questions

Description : As compared to a CB amplifier, a CE amplifier has A) Lower current amplification B) Higher current amplification C) Higher input resistance. D) Both (B) & (C)

Last Answer : D) Both (B) & (C)

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 power amplifier has maximum efficiency? A. Class B B. Class C C. Class A D. all are equally efficient

Last Answer : Class B power amplifier has maximum efficiency.

Description : Ever wish you had a CB , or a VHF radio so you could talk to truckers?

Last Answer : answer:I think about how great it would be to have access to their conversations every time I do the 11-hour drive from where from Memphis to central Virginia. It would be nice to know about weather ... than listening to the radio broadcasts picked up in that stretch. Edit: What do y'all talk about?

Description : Where could I buy genuine replacement parts for a Honda CB 750?

Last Answer : You can buy parts for your motorcycle online. Oldbikebarn.com has replacement parts for a Honda CB 750, as does ebay.com. Also check out the classifieds in your local newspaper and any motorcycle shops in your area.

Description : A final amplifier of a radio transmitter draws 250 mA of plate current when the plate supply voltage is 1400 volts. If the plate circuit efficiency is 80% and the transmitter is connected to an antenna having a feed impedance of 70 ohms, ... at the feed-point? A. 4.0 A B. 2.2 A C. 1.25 A D. 2.0 A

Last Answer : D. 2.0 A

Description : Compare between class A and class B amplifier on the basis of (i) Efficiency (ii) Power (iii) Position of Q- point (iv) O/P distortion

Last Answer : Parameter Class A Class B 

Description : Define the term related to power amplifier. (i) Efficiency (ii) Voltage gain

Last Answer : (i) Efficiency: Efficiency of the power amplifier is defined as the ratio of maximum a.c. output power to the d.c. input power. Mathematically (ii) Voltage gain: Voltage gain of the power amplifier is defined as the ratio of output voltage to the input voltage. Mathematically,

Description : The efficiency of a class B push-pull amplifier is

Last Answer : The efficiency of a class B push-pull amplifier is 75-80%

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 : 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 : A buffer amplifier is usually associated with (A) High input resistance (B) Low output resistance (C) Unity Voltage Gain (D) All Of the above

Last Answer : 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 : 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 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 : If the FCC had given the license to CB Operators, instead of cellphones, how would this have effected communications as we now know it?

Last Answer : How would that have worked? CB is transceiver to transceiver, and cell/mobile is transceiver to tower and backhaul with a backbone wired network.

Description : How do I get the best performance our of my Radio shack TRC 446 CB Radio?

Last Answer : Power Mic. Get the antenna as high as possible. Get a good antenna, makes all the difference.

Description : Should I rebuild my Honda CB 360 transmission or just ditch the bike?

Last Answer : ditch the bike

Description : Is there anyway to communicate over a CB with computers?

Last Answer : answer:No. CB is through radio frequency. iChat is not. Here is a program that uses CB on computer, but is not compatible with iChat. http://www.livecbradio.com/talk.htm

Description : Why do drivers who talk on cell phones have more accidents that those talking on CB radios?

Last Answer : My suspicion would be that there are so many more cell phones in use, that that affects the numbers.

Description : Cobra CB Speaker?

Last Answer : Looks like the microphone also houses the speaker unit to me. Hope this helps.

Description : The side AB of a parallelogram ABCD is produced to any point P. A line through A and parallel to CP meets CB produced at Q, then parallelogram PBQR is completed (see figure). -Maths 9th

Last Answer : Join AC and QP, also it is given that AQ || CP ∴ △ACQ and △APQ are on the same base AQ and lie between the same parallels AQ || CP. ∴ ar(△ACQ) = ar(△APQ) or ar(△ABC) + ar(△ABQ) = ar(△BPQ) + ar(△ABQ) or ar(△ABC) = ar( △BPQ) or 1/2 ar(||gm ABCD) = 1/2 ar(||gm PBQR) or ar(||gm ABCD) = ar(||gm PBQR)

Description : The side AB of a parallelogram ABCD is produced to any point P. A line through A and parallel to CP meets CB produced at Q, then parallelogram PBQR is completed (see figure). -Maths 9th

Last Answer : Join AC and QP, also it is given that AQ || CP ∴ △ACQ and △APQ are on the same base AQ and lie between the same parallels AQ || CP. ∴ ar(△ACQ) = ar(△APQ) or ar(△ABC) + ar(△ABQ) = ar(△BPQ) + ar(△ABQ) or ar(△ABC) = ar( △BPQ) or 1/2 ar(||gm ABCD) = 1/2 ar(||gm PBQR) or ar(||gm ABCD) = ar(||gm PBQR)

Description : What is the full form of 'CB' ? -How To ?

Last Answer : The full form of 'CB' is Closing Balance

Description : Which is/are correctly linked here? `{:(,"List I",,"List II"),((a),E_(1)Cb,(a),"Carbanion formation"),((b),E_(2),(b),"Stereo specific"),((c),S_(N^(1))

Last Answer : Which is/are correctly linked here? `{:(,"List I",,"List II"),((a),E_(1)Cb,(a),"Carbanion formation" ... "),((d),E_(1),(d),"Carbocation formation"):}`

Description : Express vectors AC in terms of vectors AB and CB shown in the following figure.

Last Answer : Express vector \(\overset\longrightarrow{AC}\) in terms of vectors \(\overset\longrightarrow{AB} ... {CB}\) shown in the following figure.

Description : `AB` is a wire of uniform resistance. The galvanometer `G` shows no deflection when the length `AC = 20 cm` and `CB = 80 cm`. The resistance `R` is eq

Last Answer : `AB` is a wire of uniform resistance. The galvanometer `G` shows no deflection when the length `AC = 20 cm ... ` B. `8Omega` C. `20Omega` D. `40Omega`

Description : How far is the range for cb two way radio?

Last Answer : The range for a CB radio is maybe a mile or three. Ask a trucker next time you're driving alongside one on the highway. Just make sure to stay out of his blind spot.

Description : How far can a cb two way radio reach a signal from?

Last Answer : Most CB two way radios can reach a signal from 20 to 25 miles. The actual amount varies dependent on what brand of CB two way radio you own or are purchasing.

Description : What company is the leader in making the CB radio?

Last Answer : Cobra Electronics is currently the leader in manufacturers who make CB radios. You can visit their website at www.cobra.com/ .

Description : Where can I find the best deal on a CB Radio.?

Last Answer : It depends on the kind of CB radio. Are you looking for a automotive radio, or a handheld? A quick search over at www.big5sportinggoods.com shows that they only have handheld CB radios. Although what they do have seems to be decently priced.

Description : What factors into range for a CB radio?

Last Answer : The two main factors in range are equipment and terrain. For better range, better equipment is needed. Terrain plays a large role as well. For a home CB radio station, range should be a lot farther than what one would normally get in a vehicle, as long as quality equipment is used.

Description : What antenna do I need for my CB radio?

Last Answer : The main thing to remember for CB radio antennas is that taller antennas will work better. If this is for a vehicle, select a tall antenna where at least 50 percent of it will be above the roof line. You will have the best range this way.

Description : Do I need a license to use a CB radio?

Last Answer : In years past, a license was needed to use a CB radio. In the 1980s, the FCC removed the license stipulation, but CB radio users must still follow all FCC rules regarding CB radio usage.

Description : What are the difference MCB and CB?

Last Answer : The main difference between MCB, RCCB, and Isolators Isolators are generally used in power system while on the other hand, MCB is the circuit breaker. Isolators are manually-operated device, and on the contrary, the circuit breaker is the automatically-operated device.

Description : Give the details of switchyard 220 kV CB, Isolator, CT, CVT and lightning arrestor.  

Last Answer : 220 kV SF6 Circuit Breaker 1. Make - ABB 2. Air pressure blocking a. Close Block - 17.3 bar. b. Open block - 16.7 bar. c. Auto reclose block - 19 bar. 3. SF6 pressure block a. Alarm - 5. ... , storage and erection. Rated voltage : 216 kV rms. Operating voltage : 184 kV rms. 

Description : What are the characteristics of CB, OLR and HRC Fuse?

Last Answer : When CB is used the CB characteristics should be below the fuse, because the CB should operate first and then fuse. Not vice-versa. Because CB is the main protection or main breaking device.  

Description : Why in transformer the LV CB also be tripped along with HV CB for a primary side fault?

Last Answer : Auxiliary transformer 415v delta star transformer, if HV CB alone tripped then back feeding from LV side (say DG runs parallel with transformer)—arcing voltage at the fault on primary—fault fed for more time – more damage.  

Description : For a gaseous phase reaction, rate of reaction is equal to K. CA . CB. If the volume of the reactor is suddenly reduced to 1/4th of its initial volume, then the rate of reaction compared to the original rate will be __________ times. (A) 8 (B) 16 (C) 1/8 (D) 1/16

Last Answer : (B) 16

Description : The order of the chemical reaction as shown in the bellow figure, whose rate equation is given as -rA = KCA 2 . CB is (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (D) 3

Description : Pick out the wrong statement. (A) In a first order reaction, A → products; the reaction becomes slower as it proceeds, because the concentration of A decreases and the rate is proportional to the concentration ... irreversible reaction, A + B → 2C is k.CA .CB , then the reaction is always elementary

Last Answer : (C) According to the penetration theory, the mass transfer co-efficient decreases, if the exposure time of an eddy to the solute decreases