A charge of +2 C is at the origin. When charge Q is placed at 2 m along the positive x axis, the electric field at 2 m along the negative x axis becomes zero. What is the value of Q?

Respuesta :

Answer:

The value of Q is - 8 C

Explanation:

Given;

the magnitude of first charge = 2 C

position of the first charge = 0

         _ (2m)                            0(+2C)                         +(2m)(Q)

------------------------------------------------------------------------------------

                                                E₁ --------------------------------->                                    

            <------------------------------------------------------------------ E₂

E₁ and E₂ are equal in magnitude but opposite in direction

| E₂ | = | E₁ |

[tex]\frac{K*Q}{r^2} = \frac{K*2}{r^2} \\\\\frac{Q}{(4)^2} = \frac{2}{(2)^2}\\\\\frac{Q}{16} =\frac{2}{4}\\\\\frac{Q}{16} =\frac{1}{2}\\\\2Q = 16\\\\Q = 8 \ C[/tex]

Thus, since E₂ is opposite in direction to E₁, the Q = - 8 C

An electric charge has an electric field associated with it, and a moving electric charge produces a magnetic field. The value of Q will be -8 C.

What is an electric charge?

When the matter is held in an electric or magnetic field, it has an electric charge, which causes it to experience a force.

An electric charge has an electric field associated with it, and a moving electric charge produces a magnetic field.

The given data in the problem is;

The distance from + ve x = 2m

The distance from + ve y = 2m

A charge at the origin = +2 C

Both the electric field has the same megnitude but in the opposite direction. Hence the following relation can be applied.

|E₁|=E₂|

[tex]\rm \frac{Kq}{r^2} =\frac{K\times 2}{r^2} \\\\ \frac{Q}{r^2} = \frac{2}{2^2}\\\\ \frac{Q}{16} =\frac{1}{2}\\\\ 2Q=16 \\\\ \RM Q=8c[/tex]

Hence the value of Q will be -8 C.

To learn more about the electric charge refer to the link;

https://brainly.com/question/8163163