Download - FORM 5 - PEKA 1
![Page 1: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/1.jpg)
PEKA 1
ANALYSING THE RELATIONSHIP BETWEEN ELECTRIC CUREEN AND
POTENTIAL DIFFERENCE
![Page 2: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/2.jpg)
AIM
• To find the relationship between current and potential difference for an ohmic conductor.
![Page 3: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/3.jpg)
INFERENCE
• The potential difference , V , across an ohmic conductor is influenced by the current , I , flowing through it.
![Page 4: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/4.jpg)
Hypothesis
• The potential difference , V , across an ohmic conductor is directly proportional to the current , I , flowing through it.
![Page 5: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/5.jpg)
Variables
• Manipulated : Current , I
• Responding : Potential difference , V
• Fixed : Physical conditions of the ohmic wire
![Page 6: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/6.jpg)
Operational Definition
• Current is the reading of the ammeter. Potential difference is the reading of the voltmeter.
![Page 7: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/7.jpg)
Diagram
• Draw it .. Check on the board!! >>>> Leave some space… for that
![Page 8: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/8.jpg)
Apparatus
• Dry cells holder , ammeter (0-1 A) , voltmeter (0-5 V) , rheostat , connecting wires and switch.
![Page 9: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/9.jpg)
Materials
• 4 pieces of 1.5 V dry cell , 10cm of constantan wire (s.w.g. 22).
![Page 10: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/10.jpg)
Method
• 1. The apparatus was set up as shown in the figure.
• 2. The switch was turned on and the rheostat was adjusted until the ammeter read the current , I = 0.3 A .
• 3. The reading of the potential difference , V , was taken from the voltmeter. The reading were recorded.
• 4. Steps 2 and 3 were repeated for I = 0.4A, 0.5A , 0.6A , 0.7A, and 0.8A.
• 5. A graph of V against I was plotted.
![Page 11: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/11.jpg)
Results
• 1. Write the values of I and V obtained from the experiment in the form of a table.
• >>>>>>>>>>>>>>>>>>
• 2. Plot a graph of V against I based on the table above.
• ( Draw ur own graph )
![Page 12: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/12.jpg)
Conclusion
• The potential difference , V , across an ohmic conductor is directly proportional to the current , I , flowing through it.
![Page 13: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/13.jpg)
Precautions
• 1. The ammeter and voltmeter was checked for zero error and adjusted accordingly before carrying out the experiment.
• 2. The readings of ammeter and voltmeter were carried out with the eye directly above the indicator to prevent parallax error.
![Page 14: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/14.jpg)
Precautions
• 1. The ammeter and voltmeter was checked for zero error and adjusted accordingly before carrying out the experiment.
• 2. The readings of ammeter and voltmeter were carried out with the eye directly above the indicator to prevent parallax error.
![Page 15: FORM 5 - PEKA 1](https://reader037.vdocument.in/reader037/viewer/2022100405/546a5d52b4af9f61098b4586/html5/thumbnails/15.jpg)
-The End -
• By Ada …. ^-^