# How would I answer this question about charges?

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Given #q_1=2q_2=3q_3=4nC# , and each charge is #1 cm# away from the origin, what is the electric field magnitude at the origin?

Given

##### 1 Answer

#### Explanation:

Electric Field:

We simply sum the fields of the three charges at the origin.

Charge q1:

Charge q2:

Charge q3:

The field at the origin:

when