Calculating Electric Field & Force: Q1 & Q2

AI Thread Summary
To find the position where the net electric field from charges Q1 and Q2 equals zero, one must consider the distances from each charge and their magnitudes. The negative charge Q1 (4.2 µC) and positive charge Q2 (1.4 µC) create opposing electric fields, and the balance point will be located closer to Q2 due to its smaller magnitude. For the second part, once the position is determined, the force on a +5.0 µC charge can be calculated using Coulomb's law, considering the electric fields from both Q1 and Q2 at that point. The calculations must be shown for clarity and to receive further assistance. Understanding the principles of electric fields and forces is crucial for solving these problems accurately.
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Electric Field Help Please!

Two charges are separated by 1.0 m. Q1 has a negative charge of 4.2 µC and Q2 has a positive charge of 1.4 µC. At what position is the net electric field that is produced by both Q1 and Q2 equal to zero?

2nd part: If a +5.0 µC charge is placed at this position, what force would act on it as a result of Q1 and Q2?
 
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