1.Suppose you put positive charge on an insulated metal box (actually, remove el
ID: 2274375 • Letter: 1
Question
1.Suppose you put positive charge on an insulated metal box (actually, remove electrons from the box). Since it is a conductor, the charges will rearrange.
- The greatest accumulation of charges will be
nowhere- the charges will be uniformly distributed
on the inside, in the center of an edge
on the outside, at the corners
on the outside, in the center of an edge
on the inside, at the center of a side
on the inside, at the corners
on the outside, at the center of a side
- The electric field inside the box will be
greatest in the center of the box
zero everywhere
non-zero, the same everywhere
greatest near the center of one of the edges
greatest near the center of one of the sides
greatest near one of the corners
2. Suppose identical metal spheres are insulated from their surroundings and touching each other. A positive charge is brought near, but not touching sphere A, and held near to sphere A as the two spheres are separated. Now, the positive charge is removed. What charge will be left on sphere A and sphere B, respectively?
A is negative, B is positive
A is positive, B is positive
A in neutral, B is neutral
A is neutral, B is positive
A is positive, B is negative
A in negative, B is neutral
A is negative, B is negative
A in positive, B is neutral
A is neutral, B is negative
4. A pith ball is a small ball covered with a conducting metal foil. Suppose pith ball A is charged negatively.
- First, pith ball A is brought near neutral pith ball B.
- Then, the two pith balls touch and are separated.
a) Which is true of the charges on the two pith balls?
Before they touch they repel, after they touch they attract
Before they touch they attract, after they touch they have no effect on each other
Before they touch they repel, after they touch they repel
Before they touch they attract, after they touch they attract
Before they touch they have no effect on each other, after they touch they repel
Before they touch they have no effect on each other, after they touch they attract
Before they touch they attract, after they touch they repel
Before they touch they repel, after they touch they have no effect on each other
b) Before they touch, ball A is negative and ball B is positive. After they touch
A is positive, B is positive
A is positive, B is neutral
A is negative, B is positive
A is negative, B is negative
A is neutral, B is neutral
A is positive, B is negative
A is negative, B is neutral
A is neutral, B is negative
Suppose you put positive charge on an insulated metal box (actually, remove electrons from the box). Since it is a conductor, the charges will rearrange. The greatest accumulation of charges will be nowhere- the charges will be uniformly distributed on the inside, in the center of an edge on the outside, at the corners on the outside, in the center of an edge on the inside, at the center of a side on the inside, at the corners on the outside, at the center of a sideExplanation / Answer
1. charges uniformly on the outside
electric field will be zero.
2.A in neutral, B is neutral
4. a) Before they touch they have no effect on each other, after they touch they repel
b) A is neutral, B is neutral
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