A quadrupole consists of 4 charges,
each of +/- 1111 Coulombs,
arranged in a cross around the origin;
each is **x = 0.01 m ** away from the origin.

**
Question 1
**

What is the total electric field strength at the position **x = 1 m**?

Answer: 8.99 x 10^9 N/C

**
Question 2
**

The total electric field strength at **x = 2 m**
is weaker than that at **x = 1 m** by a factor of ...

( 1 ) 4 1 Answer: ( --- ) = --- ( 2 ) 16

**
Question 3
**

The y component of the electric field at **x = 1 m**
due only to the negative charge at (x = 0 m, y = +0.01 m)
is

Answer: +9.99 x 10^(10) N/C

Copyright © Michael Richmond. This work is licensed under a Creative Commons License.