Question

make up a physics problem that Regards Electric field from point charge and solve it make up numbers and show all equations used

Answer 1

The electric field is a vector field around a charged particle. It represents the force that other charged particles would feel if placed near the particle creating the electric field. If the point charge is positive, field lines point away from it; if the charge is negative, field lines point toward it.

The electric field of a point charge is, like any electric field, a vector field that represents the effect that the point charge has on other charges around it.

An atom consists of a heavy (+) charged nucleus surrounded by light (−) electrons.

Nucleus = (+) charged protons and (0) charged neutrons.

Unlike charges attract, and like charges repel according to Coulomb’s Law, which says that the magnitude F of the force between two charges q₁ and q₂ separated by a distance r is given by -

F = k_e | q₁ | | q₂ | / r²

where, k = constant = 9 x 10⁹ Nm²/C²

In SI units, the unit of charge is the coulomb (C).

Magnitude of charge of electron = e = +1.602 x 10⁻¹⁹ C

Charge of electron = −e

Charge of proton = +e    (by convention, the symbol e > 0, always)