Two Tiny Particles Having Charges of +7

question 15

Multiple Choice

Two tiny particles having charges of +7.00 μC and -9.00 μC are placed along the y-axis.The +7.00-µC particle is at y = 0.00 cm,and the other particle is at y = 40.00 cm.Where must a third charged particle be placed along the y-axis so that it does not experience any net electric force due to the other two particles?

• A)0.200 m
• B)2.99 m
• C)-0.187 m
• D)-2.99 m
• E)0.187 m

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