A charge q=+9.04μCq=+9.04μC is placed in the centre of a cube with side length l=2.04 cm.

Sunday, 12 August 2018

6:26 PM

Machine generated alternative text:
Question: 
A charge q = 4-9.04gC is placed in the centre of a cube witn side length I 
2.04 cm. 
1 
• 
1 
q 
Figure 1 _ A cube of side length a nas a charge of A-q in its centre. 
part 1) 
What is the net electric flux tnrougn the cube? 
N m2/C 
part 2) 
What is the electric flux through the top surface of the cube? 
N m2/C 
part 3) 
Witn the charge still in place, a constant electric field E 
N m2/C 
2.79 x 106 NIC is now set up going up the screen. What is the net electric flux through the entire cube now?

 

Machine generated alternative text:
Your answer is partially correct Note: Your answers should be correct to 3 significant figures. 
Feedback tor Part 1) 
Gauss's law tells us that the net flux through an enclosed surface is: 
where qenc is the enclosed charge q in this case. Thus 
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 1020000, which can be typed in as follows: 
182eaae 
A correct answer is 170000, which can be typed in as follows: 
170eaa 
A correct answer is 1020000, which can be typed in as follows: 
182eaae 
=fÖ.dA

 

 

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