Six identical charges are arrange in a circle (60° between them). 

Sunday, 12 August 2018

4:07 PM

 

 

Untitled picture.png Machine generated alternative text:
Question: 
a 
Figure 1 _ Six identical charges are arrange in a circle (600 between them). 
In this question we are going to consider an assembly of 6 charges evenly spaced around a circle as shown in the figure. The radius of the circle is a — 7.29 cm and each charge is 
q = 4-2.39gC. Take the potential at infinite distance from a charge to be 0, (Vm = 0). 
part 1) 
What is the potential at distance a trom the centre of the circle due just to the red charge on its own? 
V = 295000 
Your last answer was interpreted as follows: 295000 
part 2) 
What is the potential at the centre ot the circle once all 6 charges are assembled? 
V = 1770000 
Your last answer was interpreted as follows: 1770000 
part 3) 
How much work does a force nave to do to move a final panicle with charge +2.39"C trom an infinite distance away to the centre of the circle? 
w = 4.23 
Your last answer was interpreted as follows: 4.23 
Ink Drawings
Ink Drawings








Untitled picture.png Machine generated alternative text:
Question: 
a 
Figure 1 _ Six identical charges are arrange in a circle (600 between them). 
In this question we are going to consider an assembly of 6 charges evenly spaced around a circle as shown in the figure. The radius of the circle is a — 7.29 cm and each charge is 
q = 4-2.39gC. Take the potential at infinite distance from a charge to be 0, (Vm = 0). 
part 1) 
What is the potential at distance a trom the centre of the circle due just to the red charge on its own? 
V = 295000 
Your last answer was interpreted as follows: 295000 
part 2) 
What is the potential at the centre ot the circle once all 6 charges are assembled? 
V = 1770000 
Your last answer was interpreted as follows: 1770000 
part 3) 
How much work does a force nave to do to move a final panicle with charge +2.39"C trom an infinite distance away to the centre of the circle? 
w = 4.23 
Your last answer was interpreted as follows: 4.23 
Untitled picture.png Machine generated alternative text:
Correct answer, well done. 
Feedback tor Part 1) 
You have correctly answered this part 
Marks for this submissiom 0.33/0.33. 
Feedback tor Part 2) 
You have correctly answered this part 
Marks for this submissiom 0.33/0.33. 
Feedback tor Part 3) 
You have correctly answered this part 
Marks for this submissiom 0.33/0.33. 



 

Untitled picture.png Machine generated alternative text:
Question: 
a 
Figure 1 _ Six identical charges are arrange in a circle (600 between them). 
In this question we are going to consider an assembly of 6 charges evenly spaced around a circle as shown in the figure. The radius of the circle is a — 3.38 cm and each charge is 
q = 4-9.54gC. Take the potential at infinite distance from a charge to be 0, (Vm = 0). 
part 1) 
What is the potential at distance a trom the centre of the circle due just to the red charge on its own? 
Your last answer was interpreted as follows: 0 
part 2) 
What is the potential at the centre ot the circle once all 6 charges are assembled? 
Your last answer was interpreted as follows: 0 
part 3) 
How much work does a force nave to do to move a final panicle with charge +9.54"C trom an infinite distance away to the centre of the circle? 
Your last answer was interpreted as follows: 0 
Ink Drawings
Ink Drawings
Ink Drawings
Ink Drawings
Untitled picture.png Machine generated alternative text:
Question: 
a 
Figure 1 _ Six identical charges are arrange in a circle (600 between them). 
In this question we are going to consider an assembly of 6 charges evenly spaced around a circle as shown in the figure. The radius of the circle is a — 3.38 cm and each charge is 
q = 4-9.54gC. Take the potential at infinite distance from a charge to be 0, (Vm = 0). 
part 1) 
What is the potential at distance a trom the centre of the circle due just to the red charge on its own? 
Your last answer was interpreted as follows: 0 
part 2) 
What is the potential at the centre ot the circle once all 6 charges are assembled? 
Your last answer was interpreted as follows: 0 
part 3) 
How much work does a force nave to do to move a final panicle with charge +9.54"C trom an infinite distance away to the centre of the circle? 
Your last answer was interpreted as follows: 0 

Untitled picture.png Machine generated alternative text:
Your answer is partially correct Note: Your answers should be correct to 3 significant figures. 
Feedback tor Part 1) 
The potential due to a point charge is given by: 
47rE0 r 
In this case q = 9.54#C and r = 3.38 cm. Remember to convert trom cm to m and gC' to C. 
Marks for this submissiom 0.00/0.33. This submission attracted a penalty of 0.11 
Feedback tor Part 2) 
You have correctly answered this part 
Marks for this submissiom 0.33/0.33. 
Feedback tor Part 3) 
You have correctly answered this part 
Marks for this submissiom 0.33/0.33. 
A correct answer is 2540000, which can be typed in as follows: 
254eaae 
A correct answer is 15200000, which can be typed in as follows: 
152eaaee 
A correct answer is 145, which can be typed in as follows: 
145 




 

 

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