7 Ways How Technology Has Helped In the Education Of Students

7 Ways How Technology Has Helped In the Education Of Students

With the modern technology learning Electronics for students have become a lot easier than before. Its very easy to understand the concept of how the electronic components work and how to use them in real time application. Unlike to wait for electronic experts to show up you can go to websites where they publish the peace of information to help people like you, or you can discuss something further as well. There are many ways but we have illustrated 7 Ways How Technology Has Helped In the Education Of Students most effectively.

1. Circuit simulation Softwares

Circuit simulation Softwares

Suppose that you need do design a circuit which is going to perform a signal processing or operate with any operation. You plan for some operations then did your calculations, as per it you select the components you are going to use. You prepared the whole circuit, gave the power supply and the circuit did not worked as you expected, even it could be worse then not working as expected.

What a circuit Simulation softwares does is it saves you from the pain of replacing the components and helps you finding the flaw in the circuit.

With the help of simulation software you can have several advantages.

  • Building a circuit in a circuit simulation softwares is way more easier than in real life.
  • It is very easy to modify the circuit in case if it does not works at the first attempt.
  • You can use any electronic components, it doesn’t matters whether you have it physically or not.
  • You can debug the whole circuit with a single click.
  • The circuit simulation softwares do reduce the development time and cost.

2. Electronic Discussion Forums

Electronic Discussion Forums

There are several popular Electronics forum like edaboard.com, electronicspoint.com etc where you can discuss any electronic related topic with thousands of experts in the field.

An electronic Discussion Forum is a place where any people can interact with electronic as well as newbies.

It is the best place to ask things like asking for the way to repair a device or how to make a circuit which does such thing when some voltage and current is supplied.

3. Open Source

Open Source arduino boards

Who doesn’t loves open source platform ?

They are free to use and customize also you can use these platform as per your wish.

Open source platform such as arduino and raspberry pi are the great ways to introduce the concept of digital electronics to the peoples who are new in the field.

Since these are open source and can be easily blend in your application you can easily use these in many types of electronics projects. You can easily spot few electronic projects (which have used arduino) on the popular websites like reddit which have literally gone out of the box.  

4. Research Paper

If you are too much interested in the field of electronics and want to learn about what’s trending or the latest inventions in electronics, then you can easily get it in Electronics Research paper online.

5. Online Guide

If you are completely new to learn Electronics then there are websites like circuits.io and learnabout-electronics.org which guides you from the very basics of the electronics.

Online Guide for electronics are very helpful as you can get to know anything without spending the time on the lab or reading books in a library.

6. Online Labs

Online Labs

Online Labs for Electronics are not much different from circuit simulation softwares, the great difference is that you do not have to install some software to work on it.

Instead of installing a circuit simulation softwares you can simply visit an Online Lab for Electronics and work with your circuit design.

Unlike to other Labs the dcaclab.com has a very helpful interface for newbies and hobbyist which helps to interact with the simulation just like working in an electronics lab.

7. Video Guides

Video Guides

Videos are very essential media in order to learn and understand the different concept in electronics, and you can find number of videos related with electronics in youtube which is one of the most popular websites in the world.

There are several youtube channels such as Electronics Hub and All About Circuits which are great sources to learn from if you are an electronics hobbyist and you make electronics projects.

 

  •  
  •  
  •  
  •  
  •  
  •  

IC TESTING

The IC is nothing but a small chip containing the very large and complicated circuit. The different circuit components are generated in a semiconductor material with the help of CMOS Technology. An IC (Integrated Circuit) can not be repaired and neither it had to be since they come in very cheap cost in comparison to the circuitry they contain. The Question arises in front of us is that how to test an ic and when should we throw or replace the IC.

There are four ways to Test an IC and if the IC is fine and in proper working condition then it has to pass all the four conditions.


Shorting Condition

The purpose of this method is to test if there is a short circuit inside the IC

  • Set your multimeter to the continuity mode.
  • Connect all of the pins altogether from one of the side in IC to the multimeter cable.
  • Take the terminal-cable from multimeter and connect it one by one to each of the pins of another side separately.
  • If the beep sound occurs of there is a continuity in more than 50% of the combinations then there is a good chance of the IC to be shorted from inside.

Leakage Condition

In this Method you have to test an IC that weather the package is damaged or is blown. Take the observation of the IC from each of the sides possible, if you see even a little crack, burned mark or its broken from either side then the IC is surely to be Damaged or Leaked.

Heating Condition

In the method we test if an IC is getting overheated unnecessarily.

  • Give the voltage supply to the IC as per its operating condition or if its on board then turn its supply on.
  • Touch the IC with your finger just by starting the voltage supply to it.
  • Notice if the IC is getting heat up as it naturally gets or if you are not able to touch it after few 10-12 seconds.
  • If the ic is getting heat up extremely faster then the IC is surely to be damaged.

Input and Output Supply Condition

In this we have to test an IC if the output voltage from signal pins of the IC are as per defined voltage or they differ from the specifications. Just an example of IC 74VHC112 which has Dual JK Flip Flop with Preset and Clear mode. The supply voltage to the ic that is Vcc could be 0.5 V to 7V and the output from the Signal/Data pins could be either +0.5V or – 0.5V.

Connect the Vcc to input Voltage and Ground to the Ground of negative of the supply.

Try the different inputs to the flip flop so that you can get logic “1” at-least once on each of the output pins.

Measure the voltage of the pin when you’re getting “1” as a logic output.

If the voltage is very much different from 0.5V then the IC is not functioning as its best.

If You found any of the above four conditions while testing an ic then there are very much chances that your IC is not functioning as it should be and you may need to replace your IC

Farhan Sheikh is an Electrical and Electronics Engineer passionate about making circuits and digital electronics. He Runs a blog EEE Projects which provides General information about Electrical – Electronics Topics and Projects.

MAKING A CIRCUIT USING A RELAY

  1. INTRODUCTION
    An electromagnetic relay in its switching principle is a mechanical switch which is operated with a low-power DC voltage. The switch part is used to control high power circuits.
  2. SPDT RelayRelay design
                  The SPDT relay is mainly made up of :1. Movable armature
    2. Control coil
    3. Switch contact points
    4. Coil terminals
    5. Common terminal

    Description

    RELAY SPDT (single pole double throw) has a total of five terminals Out of these two are the coil terminals. A common terminal is also included which connects to either of two others. When a voltage is applied to the control circuit, the coil traversed by a current will create an electromagnetic field; this latter is capable of moving a metal element called movable armature.

  3. Experimentation*.Objective:
    Make circuit by using a relay in the DCAClab simulator.*. Equipment:

    • Battery (Electromotive Force E = 1.5 v , Internal resistance r = 1 Ω)
    • Switch K1
    • Coil (r1 = 1Ω)
    • Relay Switch
    • Lamp (r2 = 1Ω)
    • Fan

*. Experiment 1: order a single circuit

  • Experimental mounting
  • Interpretation
    • Level 1
      1st case: Relay at rest
      The switch K1 open ( I1 = 0  ) ⇒K2 at the position (1), consequently  the circuit B is open : I2 = O , so the lamp L is off .
      2nd case: Relay at work
      The switch K1 is closed ( I1 ≠ 0 )⇒Kat the position (2), consequently  the circuit B is close : I2 ≠ 0 , so the lamp L is on .
    • Level 2_ calculating the intensity of the current I1:Ohm’s law: Ue= r1 I= E – r I1
      So  I1  = E/ (r1  + r)  = 0.04838A ≈ 48.38 mA

       

      _ calculating the power P1:

      P1 = E I1 = 1.5 x 0.04838 = 0.07257 w

      _ Value of the intensity I2:

      By using the characteristics of the lamp we find I2 = 1.456 A

      _ calculating the power P2:

      P2 = E I2 = 1.5 x 1.456 = 2.184 w

      Conclusion:

      The relay can be used to control a high power circuit by a low power circuit.

  • Experimental verification using the DCAClab simulator

*. Experiment 2 : order 2 circuits 

  • Experimental mounting1st case: Relay at restThe switch K1 is open ⇒K2 at the position (1), consequently:
    • The circuit B is closed, so the lamp is on.
    • The circuit C is open, so the fan is off.
  • Experimental verification using the DCAClab simulator

    2nd case : Relay at workThe switch K1 is closed⇒K2 at the position (2) , consequently  :

    • The circuit B is open, so the lamp is off.
    • The circuit C is closed, so the fan is on.
  • Experimental verification using the DCAClab simulator

the end.

LED COMPONENT

When it comes to experiment with colorful LEDs, students finds it very interesting in using them to build electronics circuits to indeciate current.

Because its a priority to use realistic graphics with DC/AC Virtual Lab, we have implemented the LED component with varius colors to choose from, this would be very interesting for students to start using LEDs and experiment with!

TIME/DIV, VOLTS/DIV FOR OSCILLOSCOPE

Students can now play with two handly controls, that are TIME/DIV and VOLTS/DIV to set the time base and volts per div in the oscilloscope.

Its easy to add several oscilloscopes that reads the same voltage source, and compare readings while playing with time/div control or volts/div.

AUTO WIRE CUTTING

I would to introduce a new feature that will make connecting components super easy, as users will have to create one wire only, and it will get splitted into wires to connect each component.

Here is a video for the new feature:

POTENTIOMETER COMPONENT

We are very glad to announce the new component, that is the potentiometer.

Students and teachers can set the wipe value for the potentiometer using the properties inspector or directly from the potentiometer component by drag and rotate the wipe.

This is very handy for training and experimenting with adjustable resistance.

Also, students can set the track resistance of the potentiometer easily using the properties inspector.

RESISTOR COLOR BANDS

For those who like to set resistance using color bands, we are very glad to introduce this new feature to DCACLab!

As for tolerance, its randomly generated according to the selected color of band For full reference of resistor color bands, have a look at wikipedia here.

Students now can change colors of resistor and see the simulation in real time, here are more details.

INTERACTIVE SLIDES

For teachers who use slides to write their lessons, a very nice feature is added to DCACLab, that is adding slides of circuits, and adding description text for the slide.

Also, circuits can be duplicated into slides, so that teachers can build their lesson by modifying circuit in each slide.

Here is a video for the new feature: