What are digital elctronic flip flops, State the different types of flip flop and their uses.

What are digital elctronic flip flops, State the different types of flip flop and their uses.
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Ans-digital electronic flip flops are temporary single bit storage devices.different types of flip flops are JK f/f RS f/f T F/F D f/f this flip flops are using as storage device delay purpose as counter for toggled as shift register etc
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Related questions

What are digital elctronic flip flops, State the different types of flip flop and their uses.

Description : What are digital elctronic flip flops, State the different types of flip flop and their uses.

Last Answer : Ans-Digital electronic flip flops are temporary single bit storage devices. Different types of flip flops are JK f/f RS f/f T F/F D f/f this flip flops are using as storage device delay purpose as counter for toggled as shift register etc

the number of columns in a state table for a sequential circuit with m flip-flops and n inputs is.

Description : the number of columns in a state table for a sequential circuit with m flip-flops and n inputs is.

Last Answer : Ans-Its 2m+2n because.. If there are m flip-flops there should be 2m nodes. If there are n inputs then each node will have 2n.

What is the difference between latches and flip flop ?

Description : What is the difference between latches and flip flop ?

Last Answer : Ans-Latche is a bistable circuit which responds to change of logic level as they occur. It has no external inputs. Flip flop is a basic element of memory. It stores a single bit. It has a ... are edge sensitive device so it is said that latches are level triggered and flip flop is edge triggered.

SOD pin can drive a D flip-flop? a) SOD cannot drive any flip-flops. b) SOD cannot drive D flip-flop, but can drive any other flop-flops. c) Yes, SOD can drive D flop-flop. d) No, SOD cannot drive any other flop-flops except D flop-flop

Description : SOD pin can drive a D flip-flop? a) SOD cannot drive any flip-flops. b) SOD cannot drive D flip-flop, but can drive any other flop-flops. c) Yes, SOD can drive D flop-flop. d) No, SOD cannot drive any other flop-flops except D flop-flop

Last Answer : b) SOD cannot drive D flip-flop, but can drive any other flop-flops

Which of the following flip-flops is free from race condition ? (A) T flip-flop (B) SR flip-flop (C) Master-slave JK flip-flop (D) None of the above

Description : Which of the following flip-flops is free from race condition ? (A) T flip-flop (B) SR flip-flop (C) Master-slave JK flip-flop (D) None of the above

Last Answer : (C) Master-slave JK flip-flop

Design a digital circuit which has one input two output and one select line input should be 1000khz output should be 500khz and 250Khz select line either 0 or 1 if 0 select 250khz if 1 select 500khz

Description : Design a digital circuit which has one input two output and one select line input should be 1000khz output should be 500khz and 250Khz select line either 0 or 1 if 0 select 250khz if 1 select 500khz

Last Answer : Ans-demux is the circuit which satisfies the given requirement if 0 is given to the selectline 250khz o/p is provided else 500khz o/p is provided.

What is meant by filter? What are the different types of filters?

Description : What is meant by filter? What are the different types of filters?

Last Answer : Ans-Filters are the components of a circuit which remove distortion or ripples.Types of filters : 1. High pass filters 2. Low pass filters 3. Band pass filters

A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be (A) 15 ns. (B) 30 ns. (C) 45 ns. (D) 60 ns.

Description : A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be (A) 15 ns. (B) 30 ns. (C) 45 ns. (D) 60 ns.

Last Answer : Ans: A 15 ns because in synchronous counter all the flip-flops change state at the same time.

In register transfer which system is a sequential logic system in which flip-flops and gates are constructed: a. Digital system b. Register Cc. Data d. None

Description : In register transfer which system is a sequential logic system in which flip-flops and gates are constructed: a. Digital system b. Register Cc. Data d. None

Last Answer : a. Digital system

An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be used for proper operation of the counter is approximately (A) 1 MHz. (B) 500 MHz. (C) 2 MHz. (D) 4 MHz.

Description : An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be used for proper operation of the counter is approximately (A) 1 MHz. (B) 500 MHz. (C) 2 MHz. (D) 4 MHz.

Last Answer : Maximum time taken for all flip-flops to stabilize is 75ns x 8 + 50 = 650ns. Frequency of operation must be less than 1/650ns = 1.5 MHz.

In which computers, the binary number are represented by a set of binary storage device such as flip flop: a. Microcomputer b. Personal computer c. Digital computer

Description : In which computers, the binary number are represented by a set of binary storage device such as flip flop: a. Microcomputer b. Personal computer c. Digital computer

Last Answer : c. Digital computer

What are the different types of flip-flop?

Description : What are the different types of flip-flop?

Last Answer : There are various types of flip flops. Some of them are mentioned below they are, RS flip-flop SR flip-flop D flip-flop JK flip-flop T flip-flop

What are the different types of flip-flop?

Description : What are the different types of flip-flop?

Last Answer : There are various types of flip flops. Some of them are mentioned below they are, 1. RS flip-flop 2. SR flip-flop 3. D flip-flop 4. JK flip-flop 5. T flip-flop

What is the Tri State of a Signal?

Description : What is the Tri State of a Signal?

Last Answer : Ans-In digital ciruit the gate output can be only high or low. In highstate the output source current at a minimum voltage greater than ~2.8V if load(fan out ) is proper. In ... is called tristate. Tristate output cannot change output condition of succeding logic gates unless tristate is disabled.

Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Description : Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Last Answer : Definition:- A multivibrator is an electronic circuit that switches rapidly by means of positive feedback between two or more states.  OR  A multivibrator is an electronic circuit used to implement a ... Bistable Multivibrator: it can operate as a flip-flop, Circuit diagram 

What is Biasing?

Description : What is Biasing?

Last Answer : Ans- Biasing is process of applying potential across any electronic equipment in order to make it operate as we require.

what is the main application of scr in electronic field as well as in software field?

Description : what is the main application of scr in electronic field as well as in software field?

Last Answer : Ans- SCR is a rectifier we use this in power handling applications . By varying on time and off time of the scr i.e by giving the pulse to its gate we can vary the average output power ... part we can use micro controller and write a programme so that to generate required pulses to control the SCR.

what is fixed bias with and without decoupling capacitor

Description : what is fixed bias with and without decoupling capacitor

Last Answer : Ans- with ta decoupling capacitor u cannt get o/p bcz it blocks the DC and allows only AC ok.... is u dont us it it give the o/p but it's DC only so no use to hav a DC voltage in O/P

what is selective flooding?

Description : what is selective flooding?

Last Answer : Ans- Selective Flooding is a method to compute the Qos of the system

what is angle and amplitude modulation? what is noise in modulation?

Description : what is angle and amplitude modulation? what is noise in modulation?

Last Answer : Ans- modulation means change. to send a message of low frequency to a far distance we use a carrier of high frequency to carry the message. while transfering we change some parameters of ... is an unwanted signal which enter in signal while transfering a signal and makes the signal distorted.

Do we have any negative frequency?

Description : Do we have any negative frequency?

Last Answer : Ans-no it can't be negative because frequency is simply the reciprocal of time and time can't be negative. We use negative frequencies in our calculations just for easieness but remember at last we neglect it also

why the feeding frequency to a microprocessor s twice the operating frequency.

Description : why the feeding frequency to a microprocessor s twice the operating frequency.

Last Answer : Ans-since 8085 microprocessor operating frequency 5 mega hz but operating frequency is 10 mega hz because crystal effect in processor

What is the difference between PLC and DCS?

Description : What is the difference between PLC and DCS?

Last Answer : Ans-PLC means Programmable Logic Controller, which can be used to control one particular control system such as a boiler or a injection system. but DCS is Distributed control syetem, which is used ... the total process plant. in DCS we have no of controllers connected to a single monitoring system.

What does CE mean..U will see it on almost every chip(IC)..

Description : What does CE mean..U will see it on almost every chip(IC)..

Last Answer : Ans-The CE mark is a mandatory European marking for certain product groups to indicate conformity with the essential health and safety requirements set out in European Directives. The ... is certified by following clear and understandable procedures, the socalled conformity assessment procedures'

How many characters per sec (7 bits + 1 parity ) can be transmitted over a 2400 bps line if the transfer is synchronous (1 start and 1 stop bit)?

Description : How many characters per sec (7 bits + 1 parity ) can be transmitted over a 2400 bps line if the transfer is synchronous (1 start and 1 stop bit)?

Last Answer : 1. 300 2. 240 3. 250 4. 275 Ans- 2400/(7+1+2) 240

Cost of storing a bit is minimum in 1. Cache 2. Register 3. RAM 4. Magnetic tape

Description : Cost of storing a bit is minimum in 1. Cache 2. Register 3. RAM 4. Magnetic tape

Last Answer : Ans-Magnetic Tape

Which one is faster between NAND-SR FF and NOR-SR FF?

Description : Which one is faster between NAND-SR FF and NOR-SR FF?

Last Answer : Ans-well both deals with same principle.but i think NAND-SR FF is faster than NOR-SR FF

what is meant by virtual ground in the op amp ?

Description : what is meant by virtual ground in the op amp ?

Last Answer : Ans-The op amp connected in a negative feedback configuration that is the o/p connected to the inverting terminal tried to produce the same voltage at the inverting node as we applied to ... the inverting node at the ground potential and whatever the difference between these two nodes are amplified.

Why the input impedance of OP-Amp is so high?

Description : Why the input impedance of OP-Amp is so high?

Last Answer : Ans-In OPAMP we have 4 stages 1st stage i.e the input stage is a dual i/p balanced o/p opamp whose i/p resistance is v high. and if we use FET in case of BJT for 1st stage diffamp then i/p resistance will be v high in M ohms.

What is Virtual Grounding?

Description : What is Virtual Grounding?

Last Answer : Ans-Virtual grounding is the shorting of the inverting and the non-inverting terminals of the op-amp. The i/p resistance of opamp is v high. thus the base currents are v less approx 0. thus ... is same. thus if NOW one terminal is grounded due to virtual short other terminal also will be grounded.

What CMOS Transistor?

Description : What CMOS Transistor?

Last Answer : Ans-CMOS-->>Complementary Metal Oxide Semiconductor Complementary metal-oxide-semiconductor (CMOS) is a major class of integrated circuits. CMOS technology is used in chips such as microprocessors ... CMOS transistor as announced by IBM and Intel for the 45 nanometer node and beyond

What is a sequential circuit and What is a combinational circuit?Is there any difference between them? If yes what is it?

Description : What is a sequential circuit and What is a combinational circuit?Is there any difference between them? If yes what is it?

Last Answer : Ans-Combinational circuit are those whose output depends only upon the present inputs but in sequential circuit the output depends upon both present and past inputs. that is the difference.

How microprocessor works without internal memory?

Description : How microprocessor works without internal memory?

Last Answer : Ans-microprocessor works without internal memory because it consists of adreess data and control buses with some registers to process the task given to processor through the external memory.

What is Interfacing?

Description : What is Interfacing?

Last Answer : Ans-The peripheral (simple input/output devices ) connected with computer to perform tasks is known as interfacing.

Why the shape of OP-AMP is triangular not other shape?

Description : Why the shape of OP-AMP is triangular not other shape?

Last Answer : Ans-The Triangular shape symbolizes that it works for continous signals and hence forth it is an analog device. ex: Opamp If it is square then it is digital device. ex: Multiplexer If the shape is both triangular and square then it is mixed signal device. ex: ADC DAC

How many type of resistor are there in diode?

Description : How many type of resistor are there in diode?

Last Answer : Ans-They are two types one is forward resistance 1.Forward resistance 2.Reverse resistance 1.Forward resistance-This is the resistance offered in forward bias condition of the diode. It is calculated by ... in the reverse bias condition of the diode. It is also calculated by the same method.

What is Pulse Width Modulation?

Description : What is Pulse Width Modulation?

Last Answer : Ans-Pulse width modulation is a modulation technique in which the width of the pulse is varied in accordance with the message signal. Pulse width Modulation is abbreviated as PWM. PWM can be used ... the pulse train and recover an average analog waveform. PWM is used in sound synthesis circuits.

Why the input resistance of an ideal OPAMP is infinite and output resistance is zero? secondly, how can we measure these resistances(input and output) in case of an ideal OPAMPand Real OP-AMP in the following conditions when 1- load is not connected. 2- load is connected.

Description : Why the input resistance of an ideal OPAMP is infinite and output resistance is zero? secondly, how can we measure these resistances(input and output) in case of an ideal OPAMPand Real OP-AMP in the following conditions when 1- load is not connected. 2- load is connected.

Last Answer : Ans- Ideal OP-AMP is a power ful concept. If one goes through the history of amplifying devices it becomes clear that less it loads the previous stage better the output signal. ie ... . Can refer application notes by device manufacturer available in internet for more precise and practical solutions.

What are semiconductor devices ?

Description : What are semiconductor devices ?

Last Answer : Ans-Semiconductor Devices is nothing but a device which conduct semi /partially conducting ( semiconductor which conduction property lies between conductor and insulator)is termed as semiconductor device.

how to design a software IC using VHDL ?

Description : how to design a software IC using VHDL ?

Last Answer : Ans-you can use software like altera write the required programme download to the chip here is your software ic

What is Edison Effect?

Description : What is Edison Effect?

Last Answer : Ans-Edison Effect is also refferred as "Thermionic emission". Here the charge carriers flow from a charge-carrying surface due to vibrations caused by thermal energy. This phenomenon can be seen in ... electrical bulb in which is a metal filament is heated by the thermal energy from electricity.

What type of architecture is used in 8085 microprocessor?

Description : What type of architecture is used in 8085 microprocessor?

Last Answer : Ans- INTEL 8085 is a 8-bit microprocessor. It's based on Von-Neumann architecture in which the data and instructions are in the same memory space without any distinction between them. Data line: 8-bits--Can ... of data at a time. Address line: 16-bits--Can address upto 2^16(64KB) of address space.

Why we are using the bridge rectifier in most of the circuits instead of full wave rectifier eventhough the output of both are same?

Description : Why we are using the bridge rectifier in most of the circuits instead of full wave rectifier eventhough the output of both are same?

Last Answer : Ans-In bridge type (FWR) rectifiers center tapping transformer are not required so small transformers are used and we will get twice of the out put voltage that of the center tapped FWR.

What is function of ALE in 8085 microprocessor?

Description : What is function of ALE in 8085 microprocessor?

Last Answer : Ans-AlE stands for the address latch enableit 's working is that it differentiate the address and data bus in microprocessor.when it is high it select address bus .when it is low it select data bus.

What are the differences between microprocessor and micro controller.

Description : What are the differences between microprocessor and micro controller.

Last Answer : Ans-The microprocessor is the integration of a number of useful functions into a single IC package. These functions are: The ability to execute a stored set of instructions to carry out user defined ... contain a wealth of other modules such as Serial I/O Timers and Analogue to Digital Converters.

What is power electronics?

Description : What is power electronics?

Last Answer : Ans- Power electronics is the technology associated with high power which is more than 430v 3 phase supply.Generally it is consider in industries for the efficient conversion control and conditioning ... power by static means from its available input form into the desired electrical output form.

What is a BCD? What are its advantages and disadvantages? Why is an excess-3 code is called an unweighted code?

Description : What is a BCD? What are its advantages and disadvantages? Why is an excess-3 code is called an unweighted code?

Last Answer : Ans-BCD means Binary coded decimal its advantage is it can represent decimal numbers in the form of binary value says (0000-0 to 1001-9). Binary codes are divided into weighted binary code and non weighted binary ... not have weights says like ones tens hundred in decimal and 2^0 2^1 2^2 in binary.

What are the advantages of using C band for satellite communication?

Description : What are the advantages of using C band for satellite communication?

Last Answer : Ans-Its frequency ranges from 12 to 18MHz

How to manufacture the CMOS inverter?

Description : How to manufacture the CMOS inverter?

Last Answer : Ans-It can be made by using pmos and cmos in series. Both gate are connected together and act as input. Source of pmos is connected to supply. drain of pmos is connected to drain of nmosand it serves as output. source of nmos is grounded.

What is the difference between Power Amplifier and Voltage Amplifier?

Description : What is the difference between Power Amplifier and Voltage Amplifier?

Last Answer : Ans-Power amplifiers basically amplify both current and voltage (p=v*i). Voltage amplifiers only amplify the voltage.