How many flip-flops are required to construct mod 30 counter (A) 5 (B) 6 (C) 4 (D) 8

How many flip-flops are required to construct mod 30 counter
 (A) 5 (B) 6
(C) 4 (D) 8
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1 Answer

Answer :

(A) 5
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Related questions

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Last Answer : (D) 4

How many flip flops are required to construct a decade counter (A) 10 (B) 3 (C) 4 (D) 2

Description : How many flip flops are required to construct a decade counter (A) 10 (B) 3 (C) 4 (D) 2

Last Answer : Ans: C Decade counter counts 10 states from 0 to 9 ( i.e. from 0000 to 1001 ) Thus four FlipFlop's are required.

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.

Define modulus of a counter. Write the numbers of flip flops required for Mod-6 counter.

Description : Define modulus of a counter. Write the numbers of flip flops required for Mod-6 counter.

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A ring counter consisting of five Flip-Flops will have (A) 5 states (B) 10 states (C) 32 states (D) Infinite states.

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What is modulus of counter? Show the method to determine the no. of flip flops for a mod-52 counter.

Description : What is modulus of counter? Show the method to determine the no. of flip flops for a mod-52 counter.

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The number of flip flops contained in IC 7490 is (A) 2. (B) 3. (C) 4. (D) 10.

Description : The number of flip flops contained in IC 7490 is (A) 2. (B) 3. (C) 4. (D) 10.

Last Answer : (A) 2.

The number of flip-flops required to design a modulo-272 counter is: (A) 8 (B) 9 (C) 27 (D) 11

Description : The number of flip-flops required to design a modulo-272 counter is: (A) 8 (B) 9 (C) 27 (D) 11

Last Answer : 9

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.

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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.

The device which changes from serial data to parallel data is (A) COUNTER (B) MULTIPLEXER (C) DEMULTIPLEXER (D) FLIP-FLOP

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Last Answer : Ans: C The device which changes from serial data to parallel data is demultiplexer. (A demultiplexer takes in data from one line and directs it to any of its N outputs depending on the status of the select inputs.)

How many flip-flops are required to build a binary counter circuit to count from 0 to 1023 ?

Description : How many flip-flops are required to build a binary counter circuit to count from 0 to 1023 ? (a) 1 (b) 6 (c) 10 (d) 23 

Last Answer : (c)10

No. of flip-flops used in decade counter

Description : No. of flip-flops used in decade counter (a) 3 (b) 2 (c) 4 (d) None of these

Last Answer : 4

What is a master-slave flip-flop?

Description : What is a master-slave flip-flop?

Last Answer : A master-slave flip-flop consists of two flip-flops where one circuit serves as a master and the other as a slave.

What is edge-triggered flip-flop?

Description : What is edge-triggered flip-flop?

Last Answer : The problem of race around condition can solved by edge triggering flip flop. The term edge triggering means that the flip-flop changes state either at the positive ... negative edge of the clock pulse and it is sensitive to its inputs only at this transition of the clock.

What is the operation of T flip-flop?

Description : What is the operation of T flip-flop?

Last Answer : T flip-flop is also known as Toggle flip-flop. • When T=0 there is no change in the output. • When T=1 the output switch to the complement state (ie) the output toggles.

What is the operation of JK flip-flop?

Description : What is the operation of JK flip-flop?

Last Answer : When K input is low and J input is high the Q output of flip-flop is set. When K input is high and J input is low the Q output of flip-flop is reset. When both the inputs ... are high it is possible to set or reset the flip-flop (ie) the output toggle on the next positive clock edge.

What is the operation of D flip-flop?

Description : What is the operation of D flip-flop?

Last Answer : In D flip-flop during the occurrence of clock pulse if D=1, the output Q is set and if D=0, the output is reset.

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

Define Flip flop.

Description : Define Flip flop.

Last Answer : The basic unit for storage is flip flop. A flip-flop maintains its output state either at 1 or 0 until directed by an input signal to change its state.

The output of SR flip flop when S=1, R=0 is (A) 1 (B) 0 (C) No change (D) High impedance

Description : The output of SR flip flop when S=1, R=0 is (A) 1 (B) 0 (C) No change (D) High impedance

Last Answer : Ans: A As for the SR flip-flop S=set input R=reset input ,when S=1, R=0, Flip-flop will be set.

For JK flip flop with J=1, K=0, the output after clock pulse will be (A) 0. (B) 1. (C) high impedance. (D) no change.

Description : For JK flip flop with J=1, K=0, the output after clock pulse will be (A) 0. (B) 1. (C) high impedance. (D) no change.

Last Answer : (B) 1.

The MSI chip 7474 is (A) Dual edge triggered JK flip-flop (TTL). (B) Dual edge triggered D flip-flop (CMOS). (C) Dual edge triggered D flip-flop (TTL). (D) Dual edge triggered JK flip-flop (CMOS).

Description : The MSI chip 7474 is (A) Dual edge triggered JK flip-flop (TTL). (B) Dual edge triggered D flip-flop (CMOS). (C) Dual edge triggered D flip-flop (TTL). (D) Dual edge triggered JK flip-flop (CMOS).

Last Answer : Ans: C MSI chip 7474 dual edge triggered D Flip-Flop.

The A/D converter whose conversion time is independent of the number of bits is (A) Dual slope (B) Counter type (C) Parallel conversion (D) Successive approximation.

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Last Answer : Ans: C The A/D converter whose conversion time is independent of the Number of bits is Parallel conversion. (This type uses an array of comparators connected in parallel and comparators compare the input voltage at a particular ratio of the reference voltage).

The speed of conversion is maximum in (A) Successive-approximation A/D converter. (B) Parallel-comparative A/D converter. (C) Counter ramp A/D converter. (D) Dual-slope A/D converter.

Description : The speed of conversion is maximum in (A) Successive-approximation A/D converter. (B) Parallel-comparative A/D converter. (C) Counter ramp A/D converter. (D) Dual-slope A/D converter.

Last Answer : Ans: B The speed of conversion is maximum in Parallel-comparator A/D converter (Speed of conversion is maximum because the comparisons of the input voltage are carried out simultaneously.)

How many address bits are required to represent 4K memory (A) 5 bits. (B) 12 bits. (C) 8 bits. (D) 10 bits.

Description : How many address bits are required to represent 4K memory (A) 5 bits. (B) 12 bits. (C) 8 bits. (D) 10 bits.

Last Answer : (B) 12 bits.

Words having 8-bits are to be stored into computer memory. The number of lines required for writing into memory are (A) 1. (B) 2. (C) 4. (D) 8.

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Last Answer : Ans: D Because 8-bit words required 8 bit data lines.

Why do so many people have cracked heels plus, due to wearing flip flops?

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Last Answer : How do you know this is caused from flip flops?

When and how is it acceptable for an adult male to wear socks with sandals/flip flops?

Description : When and how is it acceptable for an adult male to wear socks with sandals/flip flops?

Last Answer : Whenever the hell he wants. Unless he is severely mentally deficient, he had some idea of how he will be viewed and judged by some, and so makes decisions with full awareness of potential social consequences. ;-)

Why don't you ever see athletes wearing flip flops when they compete?

Description : Why don't you ever see athletes wearing flip flops when they compete?

Last Answer : answer:Because it would be bloody stupid Your next question must be, “but why is it stupid?” Comfort Power Performance enhancing Injury prevention

Can someone explain to me why so many flip-flops are being made with ridges and bumps?

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Last Answer : Probably grip/airflow for the soles of your feet.

Would you let your kids play outside in flip flops?

Description : Would you let your kids play outside in flip flops?

Last Answer : My daughter has gone to Crocs for the two boys, 4 and 5½. Easy to clean and give some cushion to the soles.

Where can I buy bulk/wholesale flip flops for cheap?

Description : Where can I buy bulk/wholesale flip flops for cheap?

Last Answer : Do they have to be wearable? here is a bunch of flip flop themed stuff. You might also check a beauty supply.

What are the rules when it comes to wearing button up shirts with shorts and flip flops?

Description : What are the rules when it comes to wearing button up shirts with shorts and flip flops?

Last Answer : Khaki, white, and grey all work very well as colors for shorts in such a combination, but jean shorts are too casual and black shorts are a bit harsh. As far as shirt colors, you can choose ... pair of brown leather flip flops. This type of look also works well with polo shirts and boat shoes.

Do you think flip flops on little kids are a bad idea?

Description : Do you think flip flops on little kids are a bad idea?

Last Answer : Flip Flops on kids are good. The more they land on their faces, the more amusement for me! Their screams of pain are balsam for my ears. Their tears delicious nectar.

Men wearing flip flops or sandals with jeans: yes or no?

Description : Men wearing flip flops or sandals with jeans: yes or no?

Last Answer : As long as you keep your feet neat and sans ash, you’ll be fine =)

Why does my coke can have a picture of flip flops on it?

Description : Why does my coke can have a picture of flip flops on it?

Last Answer : Summer season coke?

How do i prevent my flip flops from getting dirty?

Description : How do i prevent my flip flops from getting dirty?

Last Answer : Don’t wear them?

Is it offensive when someone wears flip flops on a plane?

Description : Is it offensive when someone wears flip flops on a plane?

Last Answer : answer:Eh. I try to remember not to wear flip flops in a theater, especially after a day of walking around.

How can I prevent my feet from getting blisters from my flip flops?

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Last Answer : You can buy good flip flops to prevent your feet from getting blisters from your lip flops, You should also avoid walking in them too much and apply lotion if necessary.

How do you keep flip flops from falling off your feet?

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Last Answer : A good way to keep flip flops from falling off your feet would be to simply have a fitting pair. Many pairs that are too big will slip off very easily. Another way to make sure they stay ... different kind of flip flop, such as a sandle or flip flops with a different type of strap device.

Is it safe to drive while wearing flip flops?

Description : Is it safe to drive while wearing flip flops?

Last Answer : Driving while wearing flip flops is not recommended. Sneakers and boots offer the most protection and traction while driving. It is not illegal to drive wearing flip flops but it is not the safest footwear ... I find it more comfortable and safer to just drive barefoot when I am wearing flip flops.

What brands of flip flops wont fall apart right away?

Description : What brands of flip flops wont fall apart right away?

Last Answer : There are many brands of flip flops that won't fall apart right away, but it depends on your budget. Some choices are D&G Dolce & Gabbana Compressed Rubber Flip Flop, The North Face Base Camp Flip ... illegal, I find it more comfortable and safer to just drive barefoot when I am wearing flip flops.

What kind of maternity dress would look best with flip flops?

Description : What kind of maternity dress would look best with flip flops?

Last Answer : A good idea of a maternity dress that would go with flip flops would be anything with light material that is in a summer or spring pattern .

Are flip flops safe for kids?

Description : Are flip flops safe for kids?

Last Answer : they are for short term wear but are very dangerous for long term wear all the time

Does Crocs make Fitness flip flops?

Description : Does Crocs make Fitness flip flops?

Last Answer : Crocs do make flip flops for children and adults. However, they are not regarded as the most fashionable, nor are they designed for Fitness - if you want to buy flip flops for Fitness reasons, try fit-flops.

Where can I find flip flops for sale?

Description : Where can I find flip flops for sale?

Last Answer : There are flip flops for sale at almost any retailer, ranging from Walmart to old navy. You can find online for sale at the website Zappos.com.

Where can I buy inexpensive flip flops for my friend?

Description : Where can I buy inexpensive flip flops for my friend?

Last Answer : Old Navy has fantastic cheap flip flops. Wal-Mart, K-Mart, and Target also offer cheap flip flops. Another cheap place to get flip flops is the General Dollar Store. Or Dollar General, I never can get that straight.

What are the applications of flip flops?

Description : What are the applications of flip flops?

Last Answer : The basic application of the flip-flop is to build counters and storage systems.

A set of flip flops integrated together is called

Description : A set of flip flops integrated together is called

Last Answer : Answer : C

The three devices which make up the circuit shown in the illustration are ____________. EL-0087 A. flip-flops B. exclusive 'OR' gates C. summing op amps D. function generators

Description : The three devices which make up the circuit shown in the illustration are ____________. EL-0087 A. flip-flops B. exclusive 'OR' gates C. summing op amps D. function generators

Last Answer : Answer: A