Question

The charge imbalance that results from this movement of charge will generate an additional electric field in the region within the rod. In what direction will this field point?

a. It will point to the right and enhance the initial applied field
b. It will point to the left and oppose the initial applied field

Answer 1

the answers the correct one is case B. The field decreases the external field

Step-by-step explanation:

We place the bar in an area of ​​space with an electric field, generated by a series of positive and negative charges. Negative charges inside the bar are attracted by positive charges, and positive charges are attracted by negative external charges. As the electric field has direction of the positive charges towards the negative ones the field inside the bar is contrary to the external field

When reviewing the answers the correct one is case B. The field decreases the external field

E_net = E_ext - E_int