Two Point Charges of + 40

question 56

Multiple Choice

Two point charges of + 40.0 μC and - 10.0 μC are separated by a distance of 20.0 cm. A +7.00 μC charge is placed midway between these two charges. What is the electric force acting on this charge because of the other two charges?

• A) 0.453 N directed towards the negative charge
• B) 3.15 N directed towards the negative charge
• C) 3.15 N directed towards the positive charge
• D) 315 N directed towards the positive charge
• E) 315 N directed towards the negative charge

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