Saturday

February 28, 2015

February 28, 2015

Posted by **Lauren** on Thursday, February 3, 2011 at 7:16pm.

- Physics -
**drwls**, Thursday, February 3, 2011 at 8:25pmWherever 3/|x| - 1/|4-x| = 0 , the electric potential is zero.

|x| is the distance from the +3 nC charge and |4-x| is the distance from the -1 nC charge.

To omit the absolute value | | signs and solve algebraically, you need to write and solve separate equations for x<0, 0<x<4 and x>4

For 0<x<4,

3/x - 1/(4-x) = 0

3/x = 1/(4-x)

12 - 3x = x

x = 3

See if there are solutions in the other regions.

**Answer this Question**

**Related Questions**

PHYSICS - A -3.0 nC charge is on the x-axis at x = -10 cm and a +4.0 nC charge ...

physics, help! urgent! - A positive point charge q = +2.50 nC is located at x = ...

physics - WA -10.0 nC point charge and a +20.0 nC point charge are 15.0cm apart ...

physics - Two point charges, q1 and q2, are placed 0.30 m apart on the x-axis, ...

Physics - Electric charge charge is distributed uniformly along a thin rod of ...

Physics - A point charge Q1=-2 microcoulomb is located at x=0, and a point ...

physics - Three point charges lie in a straight line along the y-axis. A charge ...

physics - Three point charges lie in a straight line along the y-axis. A charge ...

Physics - Electromagnetism - A charge +q is at the origin. A charge –2q is at x...

Physics - An electric force moves a charge of +1.40 x 10^-4 C from point A to ...