Posted by **Mischa** on Wednesday, April 11, 2007 at 7:25pm.

Three point charges, q1, q2, and q3, lie along the x-axis at x=0, x=3 cm, and x=5 cm, respectively. Calculate the magnitude and direction of the electric force on each of the three points when q1=+6.0 muC, q2=+1.5 muC, and q3=-2.0 muC.

I would add the forces. Watch direction. Draw a figure, label the directions (like charges repel, unlike attract) at each point. That way, you wont get the signs wrong.

Example: at q2, the right charge pulls the q2 to right (call that positive), and the left charge repels it to the right (again positive) so in this case the forces add to the right.

- physics -
**hugz**, Sunday, October 20, 2013 at 10:11pm
p00p

## Answer this Question

## Related Questions

- Physics - The Superpostion Principle: Three point charges q1, q2 and q3 like ...
- physics- check - 1. three point charges, q1, q2, q3, lie along the x-axis at x...
- why doesn't anybody ever help me. - 1. three point charges, q1, q2, q3, lie ...
- physics - Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along ...
- physics - Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along ...
- physics - Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along ...
- physics - Three point charges, +6.5 ¦ÌC, +1.4 ¦ÌC, and −3.9 ¦ÌC, lie along...
- Physics - The figure below shows two pint charges, each of -2Q, fixed on the y-...
- physics - Three point charges are fixed in place in a right triangle. What is ...
- physics - Two point charges, q1 and q2, are placed 0.30 m apart on the x-axis, ...

More Related Questions