2 metal spheres (A and B) are touching next to each other. You take a negatively charged rod and hold it next to sphere A . Before removing the charged rod, you separate the 2 spheres. What charges will exist on the spheres A and B?
WHY?!?!
2007-02-12 12:52:52 · 3 answers · asked by theresa_xo92 2 in Science & Mathematics ➔ Physics
A will be postive, B will be negative.
When touching, they're equal in charges but when a charged rod is brought near it, that's cause charge separation where the electrons will move into B, the farthest point from the charged rod.
A will then become postive and B will be come negative.
Remember don't say that the positive charges move, only electrons do!
2007-02-12 12:57:42 · answer #1 · answered by Kipper to the CUP! 6 · 0⤊ 0⤋
Starting off: A & B are neutrally charged.
Once you hold the negatively charged rod near to sphere A:
Positive charges will collect at sphere A because they are attracted to the negative charge. Because the system (A and B) must maintain neutrally charged, sphere B becomes negatively charged. (You have induced a charge distribution).
Once you pull the spheres apart:
Sphere A is positively charged, and Sphere B is negatively charged!!!
2007-02-12 20:58:46 · answer #2 · answered by Jud R 3 · 0⤊ 0⤋
Hi. If memory serves, both spheres will be negatively charged and will repel each other.
2007-02-12 20:55:58 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋