Figure 1. A capacitor of two identical plates with equal and opposite charges +Q and -Q.

Sunday, 26 August 2018

12:49 AM

Machine generated alternative text: Question: -Q Figure 1 _ A capacitor ottwo identical plates witn equal and opposite charges +Q and -Q A capacitor is constructed trom two square parallel plates with equal and opposite charges. Their area is much greater than the square ot the distance between them (the sketch is not to scale). The capacitor has a capacitance at C = 3.16"F and plates nave charge Q = 8.27 mC. part 1) What is the potential difference beüeen the plates? IAVI part 2) The distance between the plates is now quadrupled, while the charge remains unchanged. What is IAVI now? IAVI part 3) What is the capacitance in this case? Check

 

Machine generated alternative text: Feedback tor Part 1) The potential is related to the charge and capacitance through: IA VI = You just need to substitute the numbers im Remember to convert from "F to F and mc 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) The capacitance is given by: When d increases, C increases by the same factor that d increases. Marks for this submissiom 0.00/0.33. This submission attracted a penalty of 0.11 A correct answer is 2620, which can be typed in as follows: 262e A correct answer is 10500, which can be typed in as follows: lasee A correct answer is 0.79, which can be typed in as follows: e.7g Q

 

 

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