Mention some applications of 555 timer

1 Answer

Answer :

*Oscillator

*pulse generator

*ramp and square wave generator

*mono-shot multivibrator

*burglar alarm

*traffic light control.

Related questions

Description : List the applications of 555 timer in Astable mode of operation

Last Answer : *FSK generator  *Pulse-position modulator

Description : List the applications of 555 timer in monostable mode of operation

Last Answer : *missing pulse detector *Linear ramp generator *Frequency divider *Pulse width modulation.

Description : Which of the following are the basic elements in a 555 timer IC? (a) Two comparators (b) A flip-flop (c) A discharge transistor (d) A resistive voltage divider  A) (a), (b) and (d) B) only (a), (b) and (c) C) only (b), (c) and (d) D) only (a), (b), (c) and (d)

Last Answer : Which of the following are the basic elements in a 555 timer IC? (a) Two comparators (b) A flip-flop (c) A discharge transistor (d) A resistive voltage divider  A) (a), (b) and (d) B) only (a), (b) and (c) C) only (b), (c) and (d) D) only (a), (b), (c) and (d)

Description : The output waveform of a 555 Timer is: (1) Sinusoidal (2) Triangular (3) Rectangular (4) Elliptical 

Last Answer : The output waveform of a 555 Timer is: Rectangular

Description : The 555 timer can be used in which of the following configurations ?  a) astable, monostable b) monostable, bistable c) astable, toggled d) bistable, tristable

Last Answer : The 555 timer can be used in astable, monostable configurations.

Description : Why is it called a 555 timer?

Last Answer : Because it have three 5k Ohm resistances.

Description : What is the use of 555 timer?

Last Answer : 555 IC timer is use in timers and oscillators.

Description : Mention some typical applications of PLL

Last Answer : • Frequency multiplication/division • Frequency translation • AM detection • FM demodulation • FSK demodulation.

Description : Mention some of the non – linear applications of op-amps

Last Answer : Rectifier, peak detector, clipper, clamper, sample and hold circuit, log amplifier, anti –log amplifier, multiplier are some of the non – linear op-amp circuits. 

Description : Mention some of the linear applications of op – amps.

Last Answer : Adder, subtractor, voltage –to- current converter, current –to- voltage converters, instrumentation amplifier, analog computation ,power amplifier, etc are some of the linear opamp circuits.

Description : Write some applications of PN junction diode

Last Answer : 1. Rectifier circuit ii. clipping and clamping iii voltage multiplier iv AM detection v. Feedback diodes vi Freewheeling diode

Description : What type of balun (balanced-to-unbalanced) is used in high frequency applications? A. Transformer type balun B. A specially configured coaxial transmission line C. A specially configured parallel-wire line D. A λ/2 transformer balun

Last Answer : B. A specially configured coaxial transmission line

Description : List the applications of instrumentation amplifier.

Last Answer : a. Temperature indicator b. Temperature controller c. Light intensity meters d. Water flow meter c. Thermal conductivity meter f. Analog weight scale

Description : What are the applications of comparator?

Last Answer : 1.Zero crossing detector 2.Window detector 3.Time marker generator 4.Phase detector

Description : List the applications of Log amplifiers:

Last Answer : 1.Analog computation may require functions such as lnx, log x, sin hx etc. These functions can be performed by log amplifiers 2.Log amplifier can perform direct dB display on digital voltmeter and spectrum analyzer 3.Log amplifier can be used to compress the dynamic range of a signal

Description : Write down the applications of precision diode. 

Last Answer : 1.Half - wave rectifier 2.Full - Wave rectifier 3.Peak – value detector 4.Clipper 5.Clamper

Description : What are the applications of V-I converter?

Last Answer : 1.Low voltage dc and ac voltmeter 2.L E D 3.Zener diode tester

Description : Why IC 741 is not used for high frequency applications?

Last Answer : IC741 has a low slew rate because of the predominance of capacitance present in the circuit at higher frequencies. As frequency increases the output gets distorted due to limited slew rate. 

Description : What are the applications of current sources?

Last Answer : Transistor current sources are widely used in analog ICs both as biasing elements and as load devices for amplifier stages.

Description : Why open loop OP-AMP configurations are not used in linear applications?

Last Answer : The open loop gain of the op-amp is not a constant and it varies with changing the temperature and variations in power supply.Also the bandwidth of the open loop op-amp is negligibly small.For this reasons open loop OP-AMP configurations are not used in linear applications.

Description : Why GRAB 555 the most trusted agent MalaysiaTRUSTED ONLINE CASINO MALAYSIAONLINE CASINO MALAYSIA TRUSTEDTRUSTED PAYOUT CASINO MALAYSIAOfficial By: GRAB 555?

Last Answer : Official by: GRAB 555TRUSTED ONLINE CASINO MalaysiaONLINE CASINO MALAYSIA TRUSTEDTRUSTED PAYOUT CASINO MALAYSIAtrusted online casino malaysia. online casino malaysia. casino online malaysia. online slot ... malaysian online slot. trusted payout casino malaysia. trusted payout online casino.

Description : How do you round 555.55 to the nearest tenth?

Last Answer : 555.6

Description : He sent 555 players back to the pavilion just 281 innings of 147 test matches and proved himself No. 1 wicket keeper: A. Boucher (SA) B. Gilchrist (Aus) C. Healy (Aus) D. Stewart (Eng)

Last Answer : ANSWER: A

Description : He sent 555 players back to the pavilion just 281 innings of 147 test matches and proved himself No. 1 wicket keeper: A. Boucher (SA) B. Gilchrist (Aus) C. Healy (Aus) D. Stewart (Eng)

Last Answer : ANSWER: A

Description : He sent 555 players back to the pavilion just 281 innings of 147 test matches and proved himself No. 1 wicket keeper: A. Boucher (SA) B. Gilchrist (Aus) C. Healy (Aus) D. Stewart (Eng)

Last Answer : ANSWER: A

Description : He sent 555 players back to the pavilion just 281 innings of 147 test matches and proved himself No. 1 wicket keeper: A. Boucher (SA) B. Gilchrist (Aus) C. Healy (Aus) D. Stewart (Eng)

Last Answer : ANSWER: A

Description : He sent 555 players back to the pavilion just 281 innings of 147 test matches and proved himself No. 1 wicket keeper: A. Boucher (SA) B. Gilchrist (Aus) C. Healy (Aus) D. Stewart (Eng)

Last Answer : ANSWER: A

Description : He sent 555 players back to the pavilion just 281 innings of 147 test matches and proved himself No. 1 wicket keeper: A. Boucher (SA) B. Gilchrist (Aus) C. Healy (Aus) D. Stewart (Eng)

Last Answer : ANSWER: A

Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 17.8 ohms the current will be ________. EL-0018 A. 0.143 amps B. 2.555 amps C. 6.966 amps D. 141.8 milliamps

Last Answer : Answer: C

Description : The following are true about spectral sensitivity of the retina: a. in scotopic conditions, the peak sensitivity of the eye is near 500 nm b. under photopic conditions the peak sensitivity is near 555 nm c ... light the retina has a peak sensitivity near 440 nm to a 25-Hz stimulus d. all above

Last Answer : all above

Description : True statement about dark adaptation include: a. there is a shift in peak spectral sensitivity from 555 nm to 505 nm with dark adaptation b. rods are more sensitive than cone during dark adaptation c. biphasic changes only occur in retina which processes both rods and cones d. all above

Last Answer : all above

Description : 3√7469 x √668 = ? a) 450 b) 300 c) 505 d) 465 e) 555

Last Answer : 3√7469 × √668 = ? = 19.5 × 25.9 = 505.05 = 505 (approx) Answer: c)

Description : Amit sold an article for Rs 630 and earned a profit of 20%. Find the cost price for Amit. 1. Rs 555 2. Rs 535 3. Rs 552 4. Rs 525

Last Answer : 4. Rs 525

Description : The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is: A. 000 B. 755 C. 744 D. 555 E. None of the above

Last Answer : B. 755

Description : The average of the 3 digit number, which remain the same when the digits interchange their positions is. A) 444 B) 555 C) 666 D) 777 

Last Answer : B) Average = (111+222+333+444+555+666+ 777+888+999)/9 =(111+999)+(222+888)+ (333+777)+(444+666)+ 555/9 =(4*1110)+555/9 =4440 + 555/9 =4995/9 =555.

Description : Draw a labelled pin diagram of IC-555 and state function of each pin

Last Answer : Pin Name Purpose 1 GND Ground reference voltage, low level (0 V)  2 TRIG The OUT pin goes high and a timing interval starts when this input falls below 1/2 of ... 8 Vcc Positive supply voltage, which is usually between 3 and 15 V depending on the variation.

Description : Draw circuit diagram of Bistable multivibrator using IC-555 and explain its working.

Last Answer : Definition – A multivibrator which has two stable states, one can be change to other when trigger pulse is applied, known as bistable multivibrator. Circuit diagram of Bistable multivibrator using IC555

Description : IC 555 is used for

Last Answer : IC 555 is used for Making oscillator

Description : What is IC 555?

Last Answer : Ic 555 is timer used for indicating time intervals which is settled in ic 

Description : Mention some areas where PLL is widely used.

Last Answer : 1.Radar synchronizations 2. Satellite communication systems 3. Air borne navigational systems 4. FM communication systems 5.Computers.

Description : Define Multivibrators. Mention its types.

Last Answer : Multivibrators are regenerative circuits, Which are mainly used in timing applications. Based on their operational characteristics they can be classified into • Astable Multivibrators • Monostable Multivibrators • Bistable Multivibrators

Description : Mention the advantages of opto-couplers:

Last Answer : *Better isolation between the two stages. *Impedance problem between the stages is eliminated. *Wide frequency response. *Easily interfaced with digital circuit. *Compact and light weight. *Problems such as noise, transients, contact bounce,.. are eliminated. 

Description : Mention any two audio frequency oscillators .

Last Answer : i. RC phase shift oscillator ii. Wein bridge oscillator

Description : Mention the advantages of Wilson current source.

Last Answer : (i) Provides high output resistance. (ii) Offers low sensitivity to transistor base currents.

Description : Mention the advantages of integrated circuits over discrete components.

Last Answer : *Miniaturisation and hence increased equipment density. *Cost reduction due to batch processing. *Increased system reliability due to the elimination of soldered joints. *Improved functional performance. *Matched devices. *Increased operating speeds. *Reduction in power consumption.

Description : In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. Whereas in Selective Repeat window, the sender resends ___________ A ... lost B. Only those packets which are lost or corrupted C. Packet from starting D. All the packets

Last Answer : B. Only those packets which are lost or corrupted

Description : What is a watchdog timer in Arduino?

Last Answer : A watchdog timer in Arduino is a timer that can be used to monitor the state of the microcontroller and reset the system if it becomes unresponsive or crashes.

Description : What is a watchdog timer in Arduino?

Last Answer : A watchdog timer in Arduino is a hardware timer that can be used to reset the microcontroller if the program stops running or crashes.

Description : What is a watchdog timer in Arduino?

Last Answer : A watchdog timer in Arduino is a hardware timer that can be used to reset the microcontroller if the program stops running or crashes.

Description : What is a watchdog timer in Arduino?

Last Answer : A watchdog timer in Arduino is a hardware timer that can be used to reset the microcontroller if the program stops running or crashes.