Four charges: +q,−q,−2q and +2q+q,−q,−2q and +2q with q=7.23μCq=7.23μC are arranged around a square with sides of length a=9.40 cma=9.40 cm as shown in the figure

Sunday, 12 August 2018

4:09 PM

Machine generated alternative text: Question: Four charges: +q, —q, —2qand + 2qwitn q 7.23gC are arranged around a square with sides of length a questiom a -q a a O a 02 9.40 cm as shown in the figure. use unit vector notation to answer the 2q lie on opposite corners. Figure 1 _ Four charges +q, —q, +2q and —2q are arranged in a square of side length a. The charges -eq and part 1) What force does the particle witn charge —2q exert on the panicle with charge +q? -106 part 2) What is the net torce on the +q charge due to the other three torces? 17.3 part 3) -76.4 The +q charge is now removed trom the top left hand corner of the square. What is the electric field in the top lett hand corner now? NIC

 

Machine generated alternative text: Feedback tor Part 1) You have correctly entered the first component You have correctly entered the second component Marks for this submissiom 0.33/0.33. Feedback tor Part 2) You have incorrectly entered the first component You have incorrectly entered the second component You have already worked out the torce due to the —2q charge. The forces are: 47rEo 2a2 Add these together to give the final answer. 1 2q2: 2q -q 47rEo (as the separation is ua) i. a Marks for this submissiom 0.00/0.33. This submission attracted a penalty of 0.11 _ Total penalties so far: 0_33_ Feedback tor Part 3) You have incorrectly entered the first component You have incorrectly entered the second component The electric field describes the force felt by a test panicle. We can write: You have already calculated the net torce_ You can calculate the field by dividing this by +q. Marks for this submissiom 0.00/0.33. This submission attracted a penalty of 0.11 A correct answer is 0, which can be typed in as follows: A correct answer —106, which can be typed in as follows: A correct answer is 15.6, which can be typed in as follows: 15.6 A correct answer —68.7, which can be typed in as follows: -68.7 A correct answer is 2150000, which can be typed in as follows: 215eaae A correct answer —9510000, which can be typed in as follows: -9518888

 

 

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