Question

The electric potential in a certain region as a function of the x-coordinate (in meters) is 4 - 6x + 7x^2. Find the x-component of the electric field at the point x=2

Answer 1

Is this supposed to be the partial derivative of the potential function? I.e. gradients

Answer 2

yup

Answer 3

posiibly yes

Answer 4

Do you divide this partial by the distance or just the derivative evaluated at the position x = 2?

Answer 5

just do the derivative at x =2

Answer 6

Remember its the negative of the derivative
\[E_x = -\frac{\delta V}{\delta x}\]