If a +q charge is placed at d in the x-axis (x_0<d), what happens to the total electric field in 1?

To determine what happens to the total electric field at a point 1, we need to consider the contribution from the +q charge placed at d in the x-axis.

The electric field at a point due to a point charge is given by Coulomb's law: E = k * (q / r^2), where E is the electric field, k is the Coulomb's constant (~9 × 10^9 N*m^2/C^2), q is the charge, and r is the distance between the point charge and the point where the electric field is being measured.

In this case, since the +q charge is placed at d on the x-axis, the distance between the charge and point 1 can be represented by (d - x_0), where x_0 is the position of point 1 on the x-axis.

Now, let's analyze the scenario:

1. If d > x_0:
In this case, the point 1 is located to the left of the +q charge on the x-axis. The distance (d - x_0) between the charge and the point 1 will be positive. Since the electric field decreases with distance, the contribution from the +q charge will result in a decrease in the total electric field at point 1.

2. If d = x_0:
In this case, the point 1 is located exactly at the position of the +q charge on the x-axis. The distance (d - x_0) is zero. Since the electric field is inversely proportional to the square of the distance, the contribution from the +q charge will result in an infinite electric field at point 1. However, this scenario is a hypothetical situation where the charges coincide and doesn't hold in reality.

3. If d < x_0:
In this case, the point 1 is located to the right of the +q charge on the x-axis. The distance (d - x_0) between the charge and the point 1 will be negative. Since the electric field decreases with distance, the contribution from the +q charge will result in a decrease in the total electric field at point 1.

So, if a +q charge is placed at d in the x-axis (x_0<d), the total electric field at point 1 will decrease.

To determine the effect of placing a +q charge at a specific point on the x-axis (x_0<d) on the total electric field at point 1, we need to consider the contributions from all charges present.

1. Identify the charges: Let's assume there are other charges present besides the +q charge at point d. We'll refer to this charge as +Q.

2. Determine the direction of the electric field due to each charge: The electric field at point 1 due to the +q charge can be determined using Coulomb's Law. However, the electric field at point 1 due to other charges needs to be known as well.

3. Consider the electric field due to the +q charge:
- If the +q charge is positive, it will create an electric field that points away from it in all directions.
- At point 1, the electric field due to the +q charge will point away from the charge, assuming point 1 is on the opposite side of the charge.

4. Analyze the effect of other charges on the total electric field at point 1:
- This depends on the positions and charges of the other charges present.
- If there are positive charges, they will create electric fields that point away from them.
- If there are negative charges, they will create electric fields that point towards them.

5. Combine the contributions from all charges:
- To determine the total electric field at point 1, we need to add up the individual electric fields due to each charge.
- If the individual electric fields due to the other charges are in the same direction as the electric field due to the +q charge, the total electric field at point 1 will be stronger.
- If the individual electric fields due to the other charges are in the opposite direction to the electric field due to the +q charge, the total electric field at point 1 will be weaker.

In summary, the total electric field at point 1 depends on the charges and their positions relative to point 1. Without specific information about the locations and charges of the other charges present, it's not possible to determine precisely what will happen to the total electric field at point 1 when a +q charge is placed at location d on the x-axis.