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Q: How do you make a circuit to count number of people passing through a gate by using an LDR A 555 IC and a CD 4029 counter?
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What is a passive element in a circuit?

A passive element is an element of the electrical circuit that does not create power, like a capacitor, an inductance, a resistor or a memristor.


What is counter and register in electronics?

Counter is a digital circuit which is able to count from a specific number to another specific number (according to the requirement). Depending upon the counting style the counters can be divided into two. i) UP counter- which increment one by one (eg. 0,1,,2,3,4,5............15) for a 4 bit counter ii) Down counter- which decrements one by one (eg. 15,14,13,12,11,10,9,8................0) for a 4 bit counter. A simple apllication of a counter is a diigital clock, having 3 counters. One for counting the seconds, another for counting the minute and the last one for counting the hour.


Calculate the total number of electrons flowing through a circuit in 20 minutes and 40 seconds if a current of 40 mA flows through the circuit?

The current in a circuit is a measure of passing electrical charge per second. Each electron carries a fix amount of charge. Therefore the number of charge moving depends on the speed of the charge, in this case electrons. In conductors like copper, there are just so many free electrons that they move in bulk slower than snail. The the Cathode ray tube, the speed is at a fraction of speed of light, not many electrons are flying. For actual number, look up speed of electron in copper at room temperature, and multiple the electrical charge constant to get at the current. This must be a standard class tutorial.


What is a final circuit?

A final subcircuit is the circuit which the number of points supplied do not exceed 15A


How do you draw a flow chart to the square of the first 20 odd numers?

1. START 2. LET counter = 0 3. LET number = 1 4. PRINT number * number 5. LET number = number + 2 6. LET counter = counter + 1 7. IF counter < 20 GOTO 4 ELSE GOTO 8 8. END

Related questions

How does the number of neutrinos passing through your body at night compare with the number passing through your body during the day?

About the same


What is countering?

A counter is a sequencial circuit with a set of flip flop which counts the number of pulses given at the clock input A counter is a sequencial circuit with a set of flip flop which counts the number of pulses given at the clock input


What is is The number of waves passing a point per second?

frequency


What is A measure of the number of electrons flowing through a circuit?

Amperage.


How to write a program to get this as answer 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5?

This Example code is written is basic. The counter variable is the Number you want to reach. You use a for loop to print from 1 to the counter number. Then you increase the counter number by 1 then go through your for loop again until you reach your counter number, and the process keeps going. Counter as Integer Counter= 1 Do For Number = 1 to Counter Print Number Next Number Counter=Counter+1 Loop


The greatest number of planes that can pass through three collinear points?

You can have an infinite number of planes passing through three collinear points.


What is the frequncey of a wave?

Frequency of the wave is the number of crests passing at a point in one second. Actually crests are not passing through, but it appears so.


What are the three ways in which the strength of induced emf in electric generator can be increased?

Increase the current, increase the windings and increase the metal core mass.


How many lines of symmetry does a circle in circle?

An infinite number, all passing through the centre.


The number of waves passing through a given point during the interval of one second?

That's called the frequency.


How can one employ an electronics circuit specialist?

Someone can employ a electronics circuit specialist through a number of means such as either hiring an electronics circuit specialist as an employee or hiring a contractor that specializes in electronic circuits.


Use zodiac in a sentence?

The zodiac is an imaginary line through the sky, passing through a number of constellations and close to which the sun, moon and planets can always be found.