Question
During induction, a positively charged rod is brought near to but not touching the electroscope. The presence of the charged object above the plate of the electroscope induces charges to move up towards the conduction plate, giving the gold leaves an overall positive charge. The positive leaves repel. Describe the force(s) at work.
-×
A Like charges repel; force-at-a-distance.
Opposites attract, contact force, followed by like charges repel, contact force.
Opposites attract, force-at-a-distance, followed by like charges repel, contact force.
1x
D Opposites attract, force-at-a-distance, followed by like charges repel, force-at-a-distance.
-×
A Like charges repel; force-at-a-distance.
Opposites attract, contact force, followed by like charges repel, contact force.
Opposites attract, force-at-a-distance, followed by like charges repel, contact force.
1x
D Opposites attract, force-at-a-distance, followed by like charges repel, force-at-a-distance.
Answers
GPT-4o mini
The correct description of the forces at work during the induction process in this scenario is:
**D. Opposites attract, force-at-a-distance, followed by like charges repel, force-at-a-distance.**
Here's the breakdown:
1. When the positively charged rod is brought near the electroscope, it creates an electric field that causes positive charges (lack of electrons) in the electroscope to be attracted towards the plate (the side nearest to the rod). This is an example of "opposites attract," where the positive rod induces a separation of charges in the electroscope.
2. As the positive charges in the electroscope move up to the plate, the leaves of the electroscope end up with an overall positive charge.
3. Since the leaves are now both positively charged, they will repel each other due to the electrostatic force between like charges. This force operates at a distance due to the electric field created by the charges.
Thus, there are two phases: initially, attraction caused by the electric field (force-at-a-distance) and then repulsion between the similarly charged leaves (also a force-at-a-distance).
**D. Opposites attract, force-at-a-distance, followed by like charges repel, force-at-a-distance.**
Here's the breakdown:
1. When the positively charged rod is brought near the electroscope, it creates an electric field that causes positive charges (lack of electrons) in the electroscope to be attracted towards the plate (the side nearest to the rod). This is an example of "opposites attract," where the positive rod induces a separation of charges in the electroscope.
2. As the positive charges in the electroscope move up to the plate, the leaves of the electroscope end up with an overall positive charge.
3. Since the leaves are now both positively charged, they will repel each other due to the electrostatic force between like charges. This force operates at a distance due to the electric field created by the charges.
Thus, there are two phases: initially, attraction caused by the electric field (force-at-a-distance) and then repulsion between the similarly charged leaves (also a force-at-a-distance).