Question

50 баллов за лучший ответ :) На гладком деревянном столе находятся два заряженных шара. В начальный момент шары удерживают в покое. Как будет изменяться энергия электрического поля, создаваемого зарядами шаров, если отпустить шары? Зависит ли ответ от того, имеют шары заряды одного знака или противоположного?

Answer 1

Энергия шаров зависит от потенциалов и зарядов.
W = ф1*q1 -ф2*q2
Если заряды разные по знаку, шары притягиваются, энергия уменьшается.
Если заряда одинаковые по знаку, они отталкиваются, энергия (потенциальная) увеличивается.

Answer 2

Electric Field Energy Change When Releasing Charged Spheres

When two charged spheres are initially held at rest on a smooth wooden table and then released, the electric field energy created by the charges will change. This change in energy is independent of the specific charges on the spheres, whether they have charges of the same sign or opposite signs.

The electric field energy will change because the spheres will experience a repulsive or attractive force, causing them to move. As the spheres move, the configuration of the electric field will change, leading to a change in the electric field energy.

The specific details of the change in electric field energy can be calculated using the formula for the electric potential energy of a system of point charges:

ΔU = U_final - U_initial

Where: - ΔU is the change in electric potential energy - U_final is the final electric potential energy of the system - U_initial is the initial electric potential energy of the system

The change in electric potential energy will be reflected in the change in the electric field energy.

The exact mathematical calculation of the change in electric field energy can be determined using the specific charges, distances, and other relevant parameters of the system.

The cited sources do not provide specific information on this physics concept. For a detailed understanding and calculation of the change in electric field energy, it is recommended to refer to physics textbooks or academic resources on electrostatics and electric potential energy.

For further insights or specific calculations related to this topic, feel free to ask!