Posted by **Anonymous** on Wednesday, February 27, 2013 at 1:47am.

A charge-Q is located at x=-l/2 and a charge +Q is located at x=l/2 . Thus the separation between the two charges is l .

The total electric field on the x axis can be written as

E(x)=E(x)d^

(a) What is the direction d^ of the total electric field at any point on the x axis where x>l/2 ?

(b)What is E(X) as a function of x for x>l/2? Express your answer in terms of, if necessary, Q ,l , x and the constant epsilon_0 (if needed, enter pi for π , epsilon_0 for epsilon_0 ).

unanswered

(c) Consider now the limit where x>>l , so that

(1±l/2x)^-2~1干l/x

Express, in this limit,E(x) in terms of, if necessary, p , x and epsilon_0 . The quantity P=Ql is called the dipole moment.

## Answer This Question

## Related Questions

- Physics - A charge is located at and a charge is located at . Thus the ...
- Physics - A charge-Q is located at x=-l/2 and a charge +Q is located at x=l/2 . ...
- Physics - A charge of q1=1×10−6 C is located at corner A of an equilateral...
- physics - please check: Two point charges, initially 1 cm apart, are moved to a ...
- physics, help! urgent! - A positive point charge q = +2.50 nC is located at x = ...
- science - three point charges are located on the positive y-axis of a coordinate...
- physics - Find the electric potential energy for the following array of charges...
- physics - Two point charges are on the y-axis. A 3.0 µC charge is located at y...
- physic - two point charges are located on the y axis as follows : charge q1 = -1...
- Physics - 1. A test charge of +2x10^-7 C is located 5 cm to the right of a ...

More Related Questions