Find the potential difference between a point on the axis and a point on the outer cylinder. Note that it is not necessary to commit yourself to a particular reference point.

Explanation:

Solution:

- The Electric potential V is given as line integral(L) of Electric Field E. The expression.

Where, r is the radial distance from the axis of charged body.

- The coaxial cable has inner radius (a) and outer radius (b). The potential difference between the inner radius (a) and outer radius (b) can be expressed as follows:

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)