Merge pull request #1 from virtual-labs/dev

exp3

README.md

@@ -1,24 +1,25 @@
 ## Introduction
 
 
-<b>Discipline | <b>Fill your discipline name here
+<b>Discipline | <b>Electronics and Communication and Engineering
 :--|:--|
-<b> Lab | <b> Fill your lab name here
-<b> Experiment|     <b> Fill your experiment name and number here
+<b> Lab | <b>  Analog Electronics Circuits Virtual Laboratory
+<b> Experiment|     <b> Monostable Multivibrator using IC 555
 
 ### About the Experiment 
 
-Fill a brief description of this experiment here
-
-<b>Name of Developer | <b> Fill the name of experiment owner here 
+### Subject Matter Expert
+<b>Name | <b> **Prof. Chittaranjan Mandal**
 :--|:--|
-<b> Institute | <b>  
-<b> Email id|     <b>  
-<b> Department |  
+<b> Institute | <b>  **Indian Institute of Technology Kharagpur**
+<b> Email id|     <b>  **[email protected]**
+<b> Department |  **Department of Computer Science and Engineering**
+<b>Webpage| <b> [http://www.iitkgp.ac.in/department/CS/faculty/cs-chitta](http://www.iitkgp.ac.in/department/CS/faculty/cs-chitta)
+
 
 ### Contributors List
 
-SrNo | Name | Faculty or Student | Department| Institute | Email id
-:--|:--|:--|:--|:--|:--|
-1 | . | . | . | . | .
-2 | . | . | . | . | .
+SrNo | Name | Developer and Integration Engineer | Department| Institute 
+:--|:--|:--|:--|:--|
+1 | **Sukriti Dhang** | Developer | Department of Mechanical Engineering | IIT Kharagpur | 
+2 | **Prakriti Dhang** | Integration | Department of Mechanical Engineering | IIT Kharagpur | 

experiment-descriptor.json

@@ -0,0 +1,57 @@
+{
+  "unit-type": "lu",
+  "label": "",
+  "basedir": ".",
+  "LaTeXinMD": false,
+  "units": [
+    {
+      "unit-type": "aim"
+    },
+
+    {
+      "target": "theory.html",
+      "source": "theory.md",
+      "label": "Theory",
+      "unit-type": "task",
+      "content-type": "text"
+    },
+
+    {
+      "target": "pretest.html",
+      "source": "pretest.json",
+      "label": "Pretest",
+      "unit-type": "task",
+      "content-type": "assesment"
+    },
+    {
+      "target": "procedure.html",
+      "source": "procedure.md",
+      "label": "Procedure",
+      "unit-type": "task",
+      "content-type": "text"
+    },
+
+    {
+      "target": "simulation.html",
+      "source": "simulation/monostable_multivibrator.html",
+      "label": "Simulation",
+      "unit-type": "task",
+      "content-type": "simulation"
+    },
+
+    {
+      "target": "posttest.html",
+      "source": "posttest.json",
+      "label": "Posttest",
+      "unit-type": "task",
+      "content-type": "assesment"
+    },
+    {
+      "target": "references.html",
+      "source": "references.md",
+      "label": "References",
+      "unit-type": "task",
+      "content-type": "text"
+    }
+  ]
+}

experiment/aim.md

@@ -1 +1,9 @@
-### Aim of the experiment
+## Aim of the experiment
+
+1. To perform a Monostable Multivibrator using 555 Timer
+2. To observe and plot the Trigger Input Voltage.
+3. To observe and plot the Output Voltage.
+4. To observe and plot the Capacitance Voltage.
+5. Calculate the practical time period by the waveform.
+6. Calculate the theoretical time period by 1.1R<sub>A</sub>C.
+7. Calculate the frequency of the waveform.

experiment/contributors.md

@@ -1,11 +1,15 @@
-EMPTY
-<!-- Remove all lines above this line before making changes to the file -->
-### Subject Matter Experts
-| SNo. | Name | Email | Institute | ID |
-| :---: | :---: | :---: | :---: | :---: |
-| 1 | name | email | institute | id |
+### Subject Matter Expert
+<b>Name | <b> **Prof. Chittaranjan Mandal**
+:--|:--|
+<b> Institute | <b>  **Indian Institute of Technology Kharagpur**
+<b> Email id|     <b>  **[email protected]**
+<b> Department |  **Department of Computer Science and Engineering**
+<b>Webpage| <b> [http://www.iitkgp.ac.in/department/CS/faculty/cs-chitta](http://www.iitkgp.ac.in/department/CS/faculty/cs-chitta)
 
-### Developers
-| SNo. | Name | Email | Institute | ID |
-| :---: | :---: | :---: | :---: | :---: |
-| 1 | name | email | institute | id |
+
+### Contributors List
+
+SrNo | Name | Developer and Integration Engineer | Department| Institute 
+:--|:--|:--|:--|:--|
+1 | **Sukriti Dhang** | Developer | Department of Mechanical Engineering | IIT Kharagpur | 
+2 | **Prakriti Dhang** | Integration | Department of Mechanical Engineering | IIT Kharagpur | 

experiment/experiment-name.md

@@ -1 +1 @@
-## Experiment name
+## Monostable Multivibrator using IC 555

experiment/posttest.json

@@ -2,37 +2,62 @@
   "version": 2.0,
   "questions": [
     {
-      "question": "This is a Sample Question 1?",
+      "question": "What does the discharge transistor do in the 555 timer circuit?",
       "answers": {
-        "a": "answer1",
-        "b": "answer2",
-        "c": "answer3",
-        "d": "answer4"
+        "a": "Charge the external capacitor to start the timing over again",
+        "b": "Charge the external capacitor to stop the timing",
+        "c": "Discharge the external capacitor to stop the timing",
+        "d": "Discharge the external capacitor to start the timing over again"
       },
-      "explanations": {
-        "a": "Explanation 1  <a href='www.google.com'>here</a>",
-        "b": "Explanation 2",
-        "c": "Explanation 2",
-        "d": "Explanation 2"
+
+      "correctAnswer": "d",
+      "difficulty": "beginner"
+    },
+    {
+      "question": "The monostable multivibrator circuit is not an oscillator because ________.",
+      "answers": {
+        "a": "Its output switches between two states",
+        "b": "It requires a sine wave input signal",
+        "c": "It requires a trigger to obtain an output signal",
+        "d": "The circuit does not require a dc power supply"
+      },
+
+      "correctAnswer": "c",
+      "difficulty": "beginner"
+    },
+    {
+      "question": "The monostable multivibrator circuit is also know as ________.",
+      "answers": {
+        "a": "One shot",
+        "b": "Two shot",
+        "c": "Three shot",
+        "d": "Four shot"
       },
+
       "correctAnswer": "a",
       "difficulty": "beginner"
     },
     {
-      "question": "This is a Sample Question 2?",
+      "question": "A monostable 555 timer has one stable states:",
       "answers": {
-        "a": "answer1",
-        "b": "answer2",
-        "c": "answer3",
-        "d": "answer4"
+        "a": "True",
+        "b": "False"
+
       },
-      "explanations": {
-        "a": "Explanation 1  <a href='www.google.com'>here</a>",
-        "b": "Explanation 2",
-        "c": "Explanation 2",
-        "d": "Explanation 2"
+
+      "correctAnswer": "a",
+      "difficulty": "beginner"
+    },
+    {
+      "question": "What is the formula to calculate the time period of the monostable multivibrator.",
+      "answers": {
+        "a": "T = 0.69 * (R<sub>A</sub> + R<sub>B</sub>) * C",
+        "b": "T = 0.69 * (R<sub>A</sub> + 2R<sub>B</sub>) * C",
+        "c": "T = 0.69 * R<sub>B</sub> * C",
+        "d": "T = 1.1 * R * C"
       },
-      "correctAnswer": "c",
+
+      "correctAnswer": "d",
       "difficulty": "beginner"
     }
   ]

experiment/pretest.json

@@ -2,37 +2,63 @@
   "version": 2.0,
   "questions": [
     {
-      "question": "This is a Sample Question 1?",
+      "question": "What is the formula to calculate the time period of the monostable multivibrator.",
       "answers": {
-        "a": "answer1",
-        "b": "answer2",
-        "c": "answer3",
-        "d": "answer4"
+        "a": "T = 0.69 * (R<sub>A</sub> + R<sub>B</sub>) * C",
+        "b": "T = 0.69 * (R<sub>A</sub> + 2R<sub>B</sub>) * C",
+        "c": "T = 0.69 * R<sub>B</sub> * C",
+        "d": "T = 1.1 * R * C"
       },
-      "explanations": {
-        "a": "Explanation 1  <a href='www.google.com'>here</a>",
-        "b": "Explanation 2",
-        "c": "Explanation 2",
-        "d": "Explanation 2"
+
+      "correctAnswer": "d",
+      "difficulty": "beginner"
+    },
+    {
+      "question": "When a capacitor charges:",
+      "answers": {
+        "a": " the voltage across the plates rises exponentially",
+        "b": "the circuit current falls exponentially",
+        "c": "the capacitor charges to the source voltage in 5×RC seconds",
+        "d": "all of the above"
       },
-      "correctAnswer": "a",
+
+      "correctAnswer": "d",
       "difficulty": "beginner"
     },
     {
-      "question": "This is a Sample Question 2?",
+      "question": "The ________ is defined as the time the output is active divided by the total period of the output signal.",
       "answers": {
-        "a": "answer1",
-        "b": "answer2",
-        "c": "answer3",
-        "d": "answer4"
+        "a": "active ratio",
+        "b": "duty cycle",
+        "c": "on time",
+        "d": "off time"
       },
-      "explanations": {
-        "a": "Explanation 1  <a href='www.google.com'>here</a>",
-        "b": "Explanation 2",
-        "c": "Explanation 2",
-        "d": "Explanation 2"
+
+      "correctAnswer": "b",
+      "difficulty": "beginner"
+    },
+    {
+      "question": "A monostable 555 timer has the following number of stable states:",
+      "answers": {
+        "a": "0",
+        "b": "1",
+        "c": "2",
+        "d": "3"
+      },
+
+      "correctAnswer": "b",
+      "difficulty": "beginner"
+    },
+    {
+      "question": "What is the output pulse width of the waveform at the output of the circuit in the given figure? <br/><p style=\"text-align:center\"><img src=\"images/post_quiz1.png \" style=\"width:350px;height:200px\"></p>",
+      "answers": {
+        "a": "1.65 ms",
+        "b": "18.2 ms",
+        "c": "4.98 ms",
+        "d": "54.6 ms"
       },
-      "correctAnswer": "c",
+
+      "correctAnswer": "b",
       "difficulty": "beginner"
     }
   ]

experiment/procedure.md

@@ -1 +1,21 @@
-### Procedure
+## Procedure
+
+#### Monostable Multivibrator using 555
+1. Connect the components as mentioned below:
+L1-L12, L14-L12, L16-L12, L4-L9, L8-L9, L9-L10, L3-L17, L11-L13, L7-L11, L6-L13, L5-L15.(For eg. click on 1 and then drag to 12 and so on.)
+2. Click on 'Check Connection' button to check the connections.
+3. If connected wrong, click on the wrong connection. Else click on 'Delete all connection' button to erase all the connections.
+4. Intially set R <sub>a</sub>=10 kΩ, C=1 µf, V<sub>cc</sub>=5 V, T<sub>in</sub> = 20 msec.
+5. Click on "Calculate" button.
+6. Now note the output voltage.
+7. Click on "Plot" button to plot, Trigger Input Voltage, Output Voltage, Capacitance Voltage
+8. Click on "Clear" button to clear the data.
+9. Repeat the experiment for another set of resistance value and capacitance value.
+10. Set the Resistance (R <sub>a</sub>) value (1 kΩ - 10 kΩ).
+11. Set the Capacitance (C) value .
+12. Set supply voltage (V<sub>cc</sub>).
+
+<div align="center">
+<img src="images/monostable_prc.png" width="50%">
+<p>Figure 1</p>
+</div>