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A point charge of +10 µC is located at x = −2 cm and a second point charge of −10 µC is located at x = 8 cm. Where should a third charge of +2 µC be placed so that the electric field at x = 0 cm is zero?
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A point charge of +10 µC is located at x = −2 cm and a second point charge of −10 µC is located at x = 8 cm. Where should a third charge of +2 µC be placed so that the electric field at x = 0 cm is zero? Answer in units of cm

User Mharlin
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1 Answer

2 votes

Answer:

Where should a third charge of +2 µC be placed = 0.867cm

Step-by-step explanation:

The concept of Coulomb's law was applied in solving the problem, electric field due to each charges was calculated, the net electric field was also gotten and appropriate substitution was done as shown in the attached files.

A point charge of +10 µC is located at x = −2 cm and a second point charge of −10 µC-example-1
A point charge of +10 µC is located at x = −2 cm and a second point charge of −10 µC-example-2
User Andrew Lively
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