The equation for the output frequency of a 555 timer operating in the astable mode is: . What value of C1 will be required if R1 = 1 k, R2 = 1 k, and f = 1 kHz? ?->(Show Answer!)

1. The equation for the output frequency of a 555 timer operating in the astable mode is: . What value of C1 will be required if R1 = 1 k, R2 = 1 k, and f = 1 kHz?

Write Comment

Comments

Tags

Show Similar Question And Answers

QA->The maximum data rate possible through a noise free 4 kHz binary channel is :....

QA->If the solution set of the equation ax2+bx+c=0 is {α, β} then α-β is:....

QA->The characteristic equation of gas is :....

QA->Operating lease is favoured by lessee in respect of assets which depreciate in value on account of :....

QA->Not a Bernstein’s condition for two processes P1 and P2 executing in parallel on input set I1 and I2, producing output set 0 1 and 0 2 respectively.....

MCQ->The equation for the output frequency of a 555 timer operating in the astable mode is: . What value of C1 will be required if R1 = 1 k, R2 = 1 k, and f = 1 kHz?....

MCQ-> Read the following discussion/passage and provide an appropriate answer for the questions that follow. Of the several features of the Toyota Production System that have been widely studied, most important is the mode of governance of the shop - floor at Toyota. Work and inter - relations between workers are highly scripted in extremely detailed ‘operating procedures’ that have to be followed rigidly, without any deviation at Toyota. Despite such rule - bound rigidity, however, Toyota does not become a ‘command - control system’. It is able to retain the character of a learning organizationIn fact, many observers characterize it as a community of scientists carrying out several small experiments simultaneously. The design of the operating procedure is the key. Every principal must find an expression in the operating procedure – that is how it has an effect in the domain of action. Workers on the shop - floor, often in teams, design the ‘operating procedure’ jointly with the supervisor through a series of hypothesis that are proposed and validated or refuted through experiments in action. The rigid and detailed ‘operating procedure’ specification throws up problems of the very minute kind; while its resolution leads to a reframing of the procedure and specifications. This inter - temporal change (or flexibility) of the specification (or operating procedure) is done at the lowest level of the organization; i.e. closest to the site of action. One implication of this arrangement is that system design can no longer be rationally optimal and standardized across the organization. It is quite common to find different work norms in contiguous assembly lines, because each might have faced a different set of problems and devised different counter - measures to tackle it. Design of the coordinating process that essentially imposes the discipline that is required in large - scale complex manufacturing systems is therefore customized to variations in man - machine context of the site of action. It evolves through numerous points of negotiation throughout the organization. It implies then that the higher levels of the hierarchy do not exercise the power of the fiat in setting work rules, for such work rules are no longer a standard set across the whole organization. It might be interesting to go through the basic Toyota philosophy that underlines its system designing practices. The notion of the ideal production system in Toyota embraces the following -‘the ability to deliver just - in - time (or on demand) a customer order in the exact specification demanded, in a batch size of one (and hence an infinite proliferation of variants, models and specifications), defect - free, without wastage of material, labour, energy or motion in a safe and (physically and emotionally) fulfilling production environment’. It did not embrace the concept of a standardized product that can be cheap by giving up variations. Preserving consumption variety was seen, in fact, as one mode of serving society. It is interesting to note that the articulation of the Toyota philosophy was made around roughly the same time that the Fordist system was establishing itself in the US automotive industry. What can be best defended as the asset which Toyota model of production leverages to give the vast range of models in a defect - free fashion?
....

MCQ->A superheterodyne receiver is to operate in the frequency range 550 kHz - 1650 kHz, with the intermediate frequency of 450 kHz. Let denote the required capacitance ratio of the local oscillator and I denote the image frequency (in kHz) of the incoming signal. If the receiver is tuned to 700 kHz, then....

MCQ-> The English alphabet is divided into five groups. Each group starts with the vowel and the consonants immediately following that vowel and the consonants immediately following that vowel are included in that group. Thus, the letters A, B, C, D will be in the first group, the letters E, F, G, H will be in the second group and so on. The value of the first group is fixed as 10, the second group as 20 and so on. The value of the last group is fixed as 50. In a group, the value of each letter will be the value of that group. To calculate the value of a word, you should give the same value of each of the letters as the value of the group to which a particular letter belongs and then add all the letters of the word: If all the letters in the word belong to one group only, then the value of that word will be equal to the product of the number of letters in the word and the value of the group to which the letters belong. However, if the letters of the words belong to different groups, then first write the value of all the letters. The value of the word would be equal to the sum of the value of the first letter and double the sum of the values of the remaining letters.For Example : The value of word ‘CAB’ will be equal to 10 + 10 + 10 = 30, because all the three letters (the first letter and the remaining two) belong to the first group and so the value of each letter is 10. The value of letter BUT = $$10 + 2 \times 40 + 2 \times 50 = 190$$ because the value of first letter B is 10, the value of T = 2 $$\times$$ 40 (T belongs to the fourth group) and the value of U = 2 $$\times$$ 50 (U belongs to the fifth group). Now calculate the value of each word given in questions 161 to 165 :AGE
....

MCQ->A 555 timer is connected for astable operation as shown below along with the output waveform. It is determined that the duty cycle should be 0.5. What steps need to be taken to correct the duty cycle, while maintaining the same output frequency?

....