In the figure below, the electric field at point P is directed upward along the
ID: 1499781 • Letter: I
Question
In the figure below, the electric field at point P is directed upward along the y- axis. If a negative charge -Q is added at a point on the positive y-axis. What happens to the field at P? (All of the charges are fixed in position.) A positive charge is placed at rest at the center of a region of space in which there is a uniform, three-dimensional electric field. (A uniform field is one whose strength and direction are the same at all points within the region.) When the positive charge is released from rest in the uniform electric field, what will its subsequent motion be? What happens to the electric potential energy of the positive charge, after the charge is released from rest in the uniform electric field?Explanation / Answer
(9)
When we will add -Q Charge on the Y axis,
Strength will Increase but there will be no change in direction because due to previous charges the direction was on the y axis.
So,
Correct option - (b)
(10)
When the positive charge is released from rest in the uniform field , The charge will feel a force in the direction of the electric field (F = q*E) and thus it will accelerate with a constant acceleration.
Correct Option - (c)
(11)
As Charge will accelerate and gain speed,
The potential energy decreases, and gets converted to kinetic energy.
As charge is positive it will move in direction of E Field.
Correct option - (e)