1. The net force on the -2 Charge is +2; acts to the right
2. The net force on the -1 charge is -1; acts to the left
3. There is no net force on the +3.
What is a net force?
The net force is the vector sum of all the force acting at a point taking into consideration the magnitude and direction of each of the individual forces.
Electric charges experience electrical forces due to the electric field.
The two types of electric charges are positive and negative charges.
Like charges repel each other while opposite charges attract each other.
Considering the charges highlighted green;
- The net force on the -2 Charge is: +3 - (+ 1) = +2; the net force on the +2 charge acts to the right
- The net force on the -1 charge is: -3 - (-2) = -1; the net force on the -1 charge acts to the left
- The net force on the +3 Charge is: +1 + (-1) = 0; there is no net force on the +3.
In conclusion, the net force obtained by vector addition.
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