(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Referring to the figure attached, how much work must be done to bring a particle, of charge Q = +16e and initially at rest, along the dashed line from infinity to the indicated point near two fixed particles of charges q1 = +4e and q2 = -2e?

Distance d = 1.40 cm, theta 1 = 43 degrees, and theta 2 = 60 degrees.

2. Relevant equations

[tex]E = \frac{kQ}{r^2} [/tex]

[tex]v = Ed = \frac{Fd}{q} = \frac{w}{q}[/tex]

3. The attempt at a solution

I've solved for the net E field produced by the 2 still charges. My thought is that I would plug in the magnitude of that value into [tex]Ed = \frac{w}{q}[/tex] along with the charge from the moving particle and that would produce a value for w... But, I do not know what to use for distance... how do I handle the infinity... with a limit?

Help appreciated.

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# Homework Help: Electric Potential-Work Problem

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