Purchase Solution

Working with charges in equlibrium

Not what you're looking for?

Hi. Can someone please walk me through the following problem?

Two point charge lie on the x axis. A charge of +9.9 micro-Coulombs is at the origin, and a charge of -5.1 micro-C is at x = 10.0 cm.
a) At what position x would a third charge q3 be in equilibrium?
b) Does your answer to part (a) depend on whether q3 is positive or negative? Explain.

Thank you!

Solution Summary

Step by step explanations with the final answer.

Solution Preview

Please see the attached figure..

For q3 to be in equilibrium, the force on it due to q1 must be equal and opposite to the force on it due to q2.

that is, F31 = - F32 ------(1)

Now, F31 = k * q1 * q3 /(0.1+x)^2

and F32 = k * q2 * q3 /x^2

Now from equation 1, we will write, ...

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Basic Physics

This quiz will test your knowledge about basic Physics.

The Moon

Test your knowledge of moon phases and movement.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.