- #1

paulimerci

- 287

- 47

- Homework Statement
- Problem attached below.

- Relevant Equations
- E = kq/r^2

I've no idea how to solve this problem. The sign of the charge is not mentioned, so I'm assuming the charge is "+". The charge exerts an outward electric field. Since two lengths of the right-angle triangle are given, I use the Pythagorean to find the hypotenuse, which is the distance between q and R, and it's found to be 10m.

$$ E = \frac{kq}{r^2}$$

$$ E = \frac{kq} {100}$$

I'm wondering why all the options have ##E_p## in the equation since it asks only for the magnitude of the field for point R. It would be great if anyone could explain how to solve this one.

$$ E = \frac{kq}{r^2}$$

$$ E = \frac{kq} {100}$$

I'm wondering why all the options have ##E_p## in the equation since it asks only for the magnitude of the field for point R. It would be great if anyone could explain how to solve this one.

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