The answer is NOT B=D>F=G>A=C=E Thanks! The figure below shows three separate si
ID: 1774146 • Letter: T
Question
The answer is NOT B=D>F=G>A=C=EThanks! The figure below shows three separate situations involving charges on metal spheres that are initially in contact. Each set of spheres is insulated from its environment and all are initially uncharged. The positively charged rod is brought up to the same distance from each set of metal spheres. The spheres are then simultaneously separated from each other. Finally, the rod is removed. 0O C DE Rank the charge on each sphere from most positive to most negative, after the rod is removed. Ties are possible. Use the symbols > and = to indicate your ranking, listing any that are equal in alphabetical order. For example, if Y and Z are the same and are both greater than X, then you would enter Y-Z:X (note: Z=Y>X would be incorrect, since Y and Z, being equal, must be in alphabetical order) MOST POSITIVE MOST NEGATIVE
Explanation / Answer
Look, this is charging by induction (and not by conduction), so the positively charged rod will induce an opposite charge on the spheres near it. Why? Because it will attract the electrons towards it(and hence the nearer spheres) and repel the positive charge as far as possible.
A and C are nearest and singly present, to the rod. So, they will have the most number of electrons and are thus most negative.
F and G will be neutral as on both of these the electrons will be accumulated on the left while the positive charge will be on the right.
B will be the most positive as all the positive charges are pushed into it.
In the second configuration, positive charges will be shared between D and E. Since E is farther, it is more positive than D.
Hence the ranking:
MOST POSITIVE: B>E>D>F=G>A=C :MOST NEGATIVE
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