the third wrong answer i put was -10Q divided by 16 03/28/201 8 1 1 :05 PM , 7.1
ID: 2269324 • Letter: T
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the third wrong answer i put was -10Q divided by 16
03/28/201 8 1 1 :05 PM , 7.1/100 Gradebook Question 2 of 14 Incorrect Map You have four identical conducting spheres: A, B, C, and D. In each scenario below, sphere A starts with a charge of-Q, sphere C starts out with a charge of+Q, and spheres B and D start out neutral. Then the spheres are touc held very far away. For each scenario, give the final charge of sphere D as a whole number fraction of Q For example, if you decide that the final charge of sphere D is-Q/7, enter "-1" in the numerator and "7" in the denominator to each other and separated in the order described. Any spheres not in contact are Remember! Before each scenario begins, spheres A, B, C, and D are reset to charges of -Q, 0, +Q, and 0 again Scenario 1: A and B touch and are separated, then A and C touch and are separated, then A and D touch and are separated Scenario 2: A and B touch and are separated, then B and D touch and are separated, then C and D touch and are separated 3 Scenario 3: A and D touch and are separated, then D and C touch and are separated, then D and A touch and are separated, then A and B touch and are separated Incorrect. Previous Give Up & View Solution Try Again Next Exit ExplanationExplanation / Answer
Sceanrio 1 :
A and B touch and are seperated ,then charge on each sphere is
QA=QB=-Q+0/2 =-Q/2
A and C touch and are seperated ,then charge on each sphere is
QA=QC =(-Q/2 +Q)/2 =Q/4
A and D touch and are seperated ,then charge on each sphere is
QA=QD=(Q/4+0)/2 =Q/8
Enter answer as 1/8
Sceanrio 2
A and B touch and are seperated ,then charge on each sphere is
QA=QB=(-Q+0) /2=-Q/2
B and D touch and are seperated ,then charge on each sphere is
QB=QD=(-Q/2+0)/2 =-Q/4
C and D touch and are seperated ,then charge on each sphere is
QD=QC=(-Q/4+Q)/2 =3Q/8
Enter as answer as 3/8
Sceanrio 3
A and D touch and are seperated ,then charge on each sphere is
QA=QD=(-Q+0)/2 =-Q/2
D and C touch and are seperated ,then charge on each sphere is
QD=QC=(-Q/2+Q)/2 =Q/4
D and A touch and are seperated ,then charge on each sphere is
QA=QD=(Q/4 -Q/2)/2 =-Q/8
A and B touch and are seperated ,then charge on each sphere is
QA=QB=(-Q/8 + 0)/2 =-Q/16
Therefore
QD=-Q/8
Enter answer as -1/8
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